AMERCO /NV/, 10-Q filed on 04 Aug 21
 | XBRL Documents
v3.21.2
Document and Entity Information
 3 Months Ended
Jun. 30, 2021
shares
Document and Entity Information [Abstract]  
Entity Registrant Name AMERCO
Entity Central Index Key 0000004457
Entity Current Reporting Status Yes
Entity Small Business false
Current Fiscal Year End Date --03-31
Entity Filer Category Large Accelerated Filer
Entity Emerging Growth Company false
Document Fiscal Year Focus 2022
Trading Symbol UHAL
Document Type 10-Q
Document Fiscal Period Focus Q1
Document Period End Date Jun. 30, 2021
Amendment Flag false
Entity Common Stock, Shares Outstanding 19,607,788
Entity Shell Company false
Entity Interactive Data Current Yes
Entity File Number 001-11255
Entity Tax Identification Number 88-0106815
Entity address, address line one 5555 Kietzke Lane
Entity address, address line two Suite 100
Entity address, City or Town Reno
Entity address, State or Province NV
Entity address, postal zip code 89511
City Area Code 775
Local Phone Number 688-6300
Entity Incorporation, State or Country Code NV
Title of 12(b) Security Common Stock , $0.25 par value
Security Exchange Name NASDAQ
Document Quarterly Report true
Document Transition Report false
v3.21.2
Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2021
Mar. 31, 2021
ASSETS:    
Cash and cash equivalents $ 1,519,981 $ 1,194,012
Reinsurance recoverables and trade receivables, net 233,056 224,426
Inventories, net 117,978 105,577
Prepaid expenses 306,565 469,144
Investments, fixed maturities and marketable equities 2,755,133 2,695,656
Investments, other 525,893 489,759
Deferred policy acquisition costs, net 101,169 89,749
Other assets 46,910 47,730
Right of use Assets - Financing 814,875 877,038
Right of use Assets - Operating 89,369 92,505
Related party assets 34,481 35,395
Subtotal assets 6,545,410 6,320,991
Property, plant and equipment, at cost:    
Land 1,110,300 1,075,813
Buildings and improvements 5,284,224 5,163,705
Furniture and equipment 796,077 786,505
Property, plant and equipment (gross) 11,805,268 11,413,668
Less: Accumulated depreciation (3,235,796) (3,083,053)
Total property, plant and equipment 8,569,472 8,330,615
Total assets 15,114,882 14,651,606
Liabilities:    
Accounts payable and accrued expenses 696,797 645,575
Notes, loans and leases payable 4,673,383 4,668,907
Financing lease liability 468,484  
Operating lease liability 89,390 92,510
Policy benefits and losses, claims and loss expenses payable 1,007,144 997,701
Liabilities from investment contracts 2,226,560 2,161,530
Other policyholders' funds and liabilities 10,989 12,420
Deferred income 54,738 42,592
Deferred income taxes, net 1,244,353 1,178,489
Total liabilities 10,003,354 9,799,724
Commitments and contingencies (notes 4, 8 and 9)
Stockholders' equity:    
Additional paid-in capital 453,819 453,819
Accumulated other comprehensive loss 31,132 106,857
Retained earnings 5,293,730 4,958,359
Total stockholders' equity 5,111,528 4,851,882
Total liabilities and stockholders' equity 15,114,882 14,651,606
Series A Preferred Stock [Member]    
Stockholders' equity:    
Preferred stock, value, issued 0 0
Series B Preferred Stock [Member]    
Stockholders' equity:    
Preferred stock, value, issued 0 0
Serial Common Stock [Member]    
Stockholders' equity:    
Common stock, value, issued 0 0
Amerco Common Stock [Member]    
Stockholders' equity:    
Common stock, value, issued 10,497 10,497
Common Stock in Treasury [Member]    
Stockholders' equity:    
Treasury stock, value (525,653) (525,653)
Preferred Stock in Treasury [Member]    
Stockholders' equity:    
Treasury stock, value (151,997) (151,997)
Rental Trailers and Other Rental Equipment [Member]    
Property, plant and equipment, at cost:    
Property subject to or available for operating lease, gross 495,012 477,921
Rental Trucks [Member]    
Property, plant and equipment, at cost:    
Property subject to or available for operating lease, gross $ 4,119,655 $ 3,909,724
v3.21.2
Condensed Consolidated Balance Sheets Parenthetical
Jun. 30, 2021
$ / shares
shares
Series Preferred Stock With or Without Par Value [Member]  
Preferred stock:  
Preferred stock, shares authorized 50,000,000
Series A Preferred Stock [Member]  
Preferred stock:  
Preferred stock, shares authorized 6,100,000
Preferred stock, shares issued 6,100,000
Series B Preferred Stock [Member]  
Preferred stock:  
Preferred stock, shares authorized 100,000
Serial Common Stock With or Without Par Value [Member]  
Common stock:  
Common stock, shares authorized 250,000,000
Serial Common Stock [Member]  
Common stock:  
Common stock, shares authorized 10,000,000
Common stock, par or stated value per share | $ / shares $ 0.25
Common Stock [Member]  
Common stock:  
Common stock, shares authorized 250,000,000
Common stock, par or stated value per share | $ / shares $ 0.25
Amerco Common Stock [Member]  
Common stock:  
Common stock, shares authorized 250,000,000
Common stock, shares, issued 41,985,700
Common stock, shares, outstanding 19,607,788
Common stock, par or stated value per share | $ / shares $ 0.25
Common Stock in Treasury [Member]  
Treasury stock:  
Treasury stock, shares 22,377,912
Preferred Stock in Treasury [Member]  
Treasury stock:  
Treasury stock, shares 6,100,000
v3.21.2
Condensed Consolidated Statements of Operations - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Revenues:    
Self-moving equipment rentals $ 1,035,377 $ 654,285
Self-storage revenues 137,393 108,955
Self moving and self-storage products and service sales 104,885 91,350
Property management fees 8,449 7,347
Life insurance premiums 28,705 30,908
Property and casualty insurance premiums 16,869 13,734
Investment income interest and dividend 34,999 16,982
Other revenue 106,179 63,676
Total revenues 1,472,856 987,237
Costs and expenses:    
Operating expenses 614,529 492,662
Commission expenses 113,149 69,175
Cost of sales 69,915 52,831
Benefits and losses 47,298 39,577
Amortization of deferred policy acquisition costs 8,823 6,888
Lease expense 7,647 6,603
Depreciation, net of (gains) losses on disposals 121,717 165,671
Net (gains) losses on disposal of real estate (4,430) (256)
Total costs and expenses 978,648 833,151
Earnings from operations 494,208 154,086
Other components of net periodic benefit costs (280) (247)
Interest expense (39,178) (39,521)
Pretax earnings 454,750 114,318
Income tax expense (109,575) (26,592)
Earnings available to common stockholders $ 345,175 $ 87,726
Basic and diluted earnings per common share   $ 4.47
Weighted average common shares outstanding: basic and diluted 19,607,788 19,607,788
v3.21.2
Condensed Consolidated Statements of Operations Parenthetical - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Depreciation:    
Net gain on sale of real and personal property $ (50,323) $ (1,069)
Related party:    
Related party revenues, net of eliminations 8,449 7,347
Related party, costs and expenses, net of eliminations $ 23,506 $ 15,989
v3.21.2
Condensed Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Comprehensive income (loss) (pretax):    
Pretax earnings (loss) $ 454,750 $ 114,318
Comprehensive income (loss) (tax effect):    
Income tax expense (109,575) (26,592)
Comprehensive income (loss) (net of tax):    
Net earnings 345,175 87,726
Other comprehensive income (loss):    
Foreign currency translation (pretax) (3,392) (2,917)
Foreign currency translation (tax effect) 0 0
Foreign currency translation (net of tax) (3,392) (2,917)
Unrealized gain (loss) on investments (pretax) (92,451) (58,962)
Unrealized gain (loss) on investments (tax effect) 19,424 13,463
Unrealized gain (loss) on investments (net of tax) (73,027) (45,499)
Change in fair value of cash flow hedges (pretax) (68) (705)
Change in fair value of cash flow hedges (tax effect) 17 173
Change in fair value of cash flow hedges (net of tax) (51) (532)
Amounts reclassifed into earnings on hedging activities (pretax) 987 747
Amounts reclassified into earnings on hedging activities (tax effect) (242) (183)
Amounts reclassified into earnings on hedging activities (net of tax) 745 564
Total other comprehensive income (loss) (pretax) (94,924) (61,837)
Total other comprehensive income (loss) (tax effect) 19,199 13,453
Total other comprehensive income (loss) (net of tax) (75,725) (48,384)
Total comprehensive income (pretax) 359,826 52,481
Total comprehensive income (tax effect) (90,376) (13,139)
Total comprehensive income (net of tax) $ 269,450 $ 39,342
v3.21.2
Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Retained Earnings [Member]
Less: Treasury Common Stock [Member]
Less: Treasury Preferred Stock [Member]
Balance, beginning of period at Mar. 31, 2020 $ 4,220,720 $ 10,497 $ 453,819 $ 34,652 $ 4,399,402 $ (525,653) $ (151,997)
Cosolidated statement of change in equity              
Adjustment for adoption of ASU 2016-13 (2,880) 0 0 0 (2,880) 0 0
Foreign currency translation (2,917) 0 0 (2,917) 0 0 0
Unrealized net gain (loss) on investments, net of tax (45,499) 0 0 (45,499) 0 0 0
Change in fair value of cash flow hedges, net of tax (532) 0 0 (532) 0 0 0
Amounts reclassified into earnings on hedging activities 564 0 0 564 0 0 0
Net earnings 87,726 0 0 0 87,726 0 0
Net activity 36,462 0 0 (48,384) 84,846 0 0
Balance, end of period at Jun. 30, 2020 4,257,182 10,497 453,819 (13,732) 4,484,248 (525,653) (151,997)
Balance, beginning of period at Mar. 31, 2021 4,851,882 10,497 453,819 106,857 4,958,359 (525,653) (151,997)
Cosolidated statement of change in equity              
Foreign currency translation (3,392) 0 0 (3,392) 0 0 0
Unrealized net gain (loss) on investments, net of tax (73,027) 0 0 (73,027) 0 0 0
Change in fair value of cash flow hedges, net of tax (51) 0 0 (51) 0 0 0
Amounts reclassified into earnings on hedging activities 745 0 0 745 0 0 0
Net earnings 345,175 0 0 0 345,175 0 0
Common stock dividends (9,804) 0 0 0 (9,804) 0 0
Net activity 259,646 0 0 (75,725) 335,371 0 0
Balance, end of period at Jun. 30, 2021 $ 5,111,528 $ 10,497 $ 453,819 $ 31,132 $ 5,293,730 $ (525,653) $ (151,997)
v3.21.2
Condensed Consolidated Statements of Changes in Stockholders' Equity Parenthetical
 3 Months Ended
Jun. 30, 2021
$ / shares
Common Stock, Dividends, Per Share, Declared $ 0.50
v3.21.2
Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Cash flow from operating activities:    
Net earnings $ 345,175 $ 87,726
Adjustments to reconcile net earnings to cash provided by operations:    
Depreciation 172,040 166,740
Amortization of deferred policy acquisition costs 8,823 6,888
Amortization of premiums and accretion of discounts related to investments, net 4,361 3,550
Amortization of debt issuance costs 1,332 1,297
Interest credited to policyholders 15,583 7,667
Change in allowance for losses on trade receivables (484) 60
Change in allowance for inventory reserves 3,403 (99)
Net gain on sale of real and personal property (50,323) (1,069)
Net losses on disposal of real estate (4,430) (256)
Net (gain) loss on sale of investments (2,469) 2,014
Net losses on equity investments (2,231) 3,989
Deferred income tax 82,374 27,534
Net change in other operating assets and liabilities:    
Reinsurance recoverables and trade receivables (8,082) (23,594)
Inventories (15,765) 350
Prepaid expenses 162,706 (22,831)
Capitalization of deferred policy acquisition costs (8,990) (7,308)
Other assets (853) 74
Related party assets 562 7,329
Accounts payable and accrued expenses 71,599 58,273
Policy benefits and losses, claims and loss expenses payable 9,064 528
Other policyholders' funds and liabilities (1,430) (3,426)
Deferred income 11,863 14,898
Related party liabilities 385 (249)
Net cash provided by operating activities 794,213 330,085
Cash flow from investing activities:    
Escrow deposits 1,887 1,401
Purchase of:    
Property, plant and equipment (508,411) (249,740)
Short term investments (11,810) (9,625)
Fixed maturity investments (281,507) (94,193)
Preferred stock (8,000) 0
Real estate (67) (192)
Mortgage loans (42,538) (33,300)
Proceeds from sale of:    
Property, plant and equipment 182,146 76,412
Short term investments 12,558 2,448
Fixed maturity investments 126,956 110,165
Mortgage loans 5,628 1,432
Net cash used by investing activities (523,158) (195,192)
Cash flow from financing activities:    
Borrowings from credit facilities 161,854 377,051
Principal repayments on credit facilities (109,334) (154,089)
Payment of debt issuance costs (352) (1,677)
Capital lease payments (45,170) (68,554)
Net contribution from (to) related party 0 18,599
Investment contract deposits 113,779 75,366
Investment contract withdrawals (64,332) (51,633)
Net cash provided by (used in) financing activities 56,445 195,063
Effects of exchange rate on cash (1,531) 766
Increase (decrease) in cash and cash equivalents 325,969 330,722
Cash and cash equivalents at the beginning of period 1,194,012 494,352
Cash and cash equivalents at the end of the period $ 1,519,981 $ 825,074
v3.21.2
Basis of Presentation
 3 Months Ended
Jun. 30, 2021
Disclosure Text Block [Abstract]  
1. Basis of Presentation 1.Basis of Presentation AMERCO, a Nevada corporation (“AMERCO”), has a first fiscal quarter that ends on the 30 th of June for each year that is referenced. Our insurance company subsidiaries have a first quarter that ends on the 31 st of March for each year that is referenced. They have been consolidated on that basis. Our insurance companies’ financial reporting processes conform to calendar year reporting as required by state insurance departments. Management believes that consolidating their calendar year into our fiscal year financial statements does not materially affect the presentation of financial position or results of operations. We disclose material events, if any, occurring during the intervening period. Consequently, all references to our insurance subsidiaries’ years 2021 and 2020 correspond to fiscal 2022 and 2021 for AMERCO. Accounts denominated in non-U.S. currencies have been translated into U.S. dollars. Certain amounts reported in previous years have been reclassified to conform to the current presentation. The condensed consolidated balance sheet as of June 30, 2021 and the related condensed consolidated statements of operations, comprehensive income (loss), stockholders’ equity and cash flows for the first quarter of fiscal 2022 and 2021 are unaudited. In our opinion, all adjustments necessary for the fair presentation of such condensed consolidated financial statements have been included. Such adjustments consist only of normal recurring items. Interim results are not necessarily indicative of results for a full year. The information in this Quarterly Report on Form 10-Q (“Quarterly Report”) should be read in conjunction with Management’s Discussion and Analysis of Financial Condition and Results of Operations and financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended March 31, 2021. Intercompany accounts and transactions have been eliminated. Description of Legal Entities AMERCO is the holding company for: U-Haul International, Inc. (“U-Haul”); Amerco Real Estate Company (“Real Estate”); Repwest Insurance Company (“Repwest”); and Oxford Life Insurance Company (“Oxford”). Unless the context otherwise requires, the terms “Company,” “we,” “us” or “our” refer to AMERCO and all of its legal subsidiaries. Description of Operating Segments AMERCO has three ( 3 ) reportable segments. They are Moving and Storage, Property and Casualty Insurance and Life Insurance. The Moving and Storage operating segment (“Moving and Storage”) includes AMERCO, U-Haul and Real Estate and the wholly owned subsidiaries of U-Haul and Real Estate. Operations consist of the rental of trucks and trailers, sales of moving supplies, sales of towing accessories, sales of propane, and the rental of fixed and portable moving and storage units to the “do-it-yourself” mover and management of self-storage properties owned by others. Operations are conducted under the registered trade name U-Haul ® throughout the United States and Canada. The Property and Casualty Insurance operating segment (“Property and Casualty Insurance”) includes Repwest and its wholly owned subsidiaries and ARCOA Risk Retention Group (“ARCOA”). Property and Casualty Insurance provides loss adjusting and claims handling for U-Haul ® through regional offices in the United States and Canada. Property and Casualty Insurance also underwrites components of the Safemove ® , Safetow ® , Safemove Plus ® , Safestor ® and Safestor Mobile ® protection packages to U-Haul customers. The business plan for Property and Casualty Insurance includes offering property and casualty insurance products in other U-Haul-related programs. ARCOA is a group captive insurer owned by us and our wholly owned subsidiaries whose purpose is to provide insurance products related to our moving and storage business. The Life Insurance operating segment (“Life Insurance”) includes Oxford and its wholly owned subsidiaries. Life Insurance provides life and health insurance products primarily to the senior market through the direct writing and reinsuring of life insurance, Medicare supplement and annuity policies.
v3.21.2
Earnings Per Share
 3 Months Ended
Jun. 30, 2021
Earnings Per Share [Abstract]  
2. Earnings Per Share 2. Earnings per Share Our earnings per share is calculated by dividing our earnings available to common stockholders by the weighted average common shares outstanding, basic and diluted.
v3.21.2
Investments
 3 Months Ended
Jun. 30, 2021
Investments Debt Equity Securities [Abstract]  
3. Investments 3. Investments Expected maturities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. We deposit bonds with insurance regulatory authorities to meet statutory requirements. The adjusted cost of bonds on deposit with insurance regulatory authorities was $ 26.8 million and $ 27.7 million as of June 30, 2021 and March 31, 2021, respectively. Available-for-Sale Investments Available-for-sale investments as of June 30, 2021 were as follows:       Amortized Cost   Gross Unrealized Gains   Gross Unrealized Losses More than 12 Months   Gross Unrealized Losses Less than 12 Months   Allowance for Expected Credit Losses   Estimated Market Value     (Unaudited)     (In thousands) U.S. treasury securities and government obligations $ 104,016 $   9,087 $   – $   (818) $   – $   112,285 U.S. government agency mortgage-backed securities   70,219   782   (7)   (762)   –   70,232 Obligations of states and political subdivisions   215,298   18,323   (106)   (969)   –   232,546 Corporate securities   1,998,177   129,442   (1,079)   (18,456)   (1,041)   2,107,043 Mortgage-backed securities   170,569   10,380   (1)   (2)   –   180,946   $ 2,558,279 $   168,014 $   (1,193) $   (21,007) $   (1,041) $   2,703,052   Available-for-sale investments as of March 31, 2021 were as follows:       Cost Amortized   Unrealized Gains Gross   Unrealized Losses More than 12 Months Gross   Unrealized Losses Less than 12 Months Gross   Allowance for Expected Credit Losses   Market Value Estimated           (In thousands) U.S. treasury securities and government obligations $ 92,429 $   12,941 $   – $   – $   – $   105,370 U.S. government agency mortgage-backed securities   61,427   911   (1)   (132)   –   62,205 Obligations of states and political subdivisions   230,521   25,249   (59)   (3)   –   255,708 Corporate securities   1,846,507   199,447   (163)   (641)   (1,319)   2,043,831 Mortgage-backed securities   174,728   11,706   (1)   (8)   –   186,425   $ 2,405,612 $   250,254 $   ( 224 ) $   ( 784 ) $   ( 1,319 ) $   2,653,539   We sold available-for-sale securities with a fair value of $ 124.7 million during the first quarter of fiscal 2022. The gross realized gains on these sales totaled $ 2.1 million.   The gross realized losses on these sales totaled $ 0.6 million. For available-for-sale debt securities in an unrealized loss position, we first assess whether the security is below investment grade.  For securities that are below investment grade, we evaluate whether the decline in fair value has resulted from credit losses or other factors such as the interest rate environment. Declines in value due to credit are recognized as an allowance. In making this assessment, management considers the extent to which fair value is less than amortized cost, any changes to the rating of the security by a rating agency, and adverse market conditions specifically related to the security, among other factors.  If this assessment indicates that a credit loss exists, cumulative default rates based on ratings are used to determine the potential cost of default, by year.  The present value of these potential costs is then compared to the amortized cost of the security to determine the credit loss, limited by the amount that the fair value is less than the amortized cost basis.   Declines in fair value that have not been recorded through an allowance for credit losses, such as declines due to changes in market interest rates, are recorded through accumulated other comprehensive income, net of applicable taxes. If we intend to sell a security, or it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis, the security is written down to its fair value and the write down is charged against the allowance for credit losses, with any incremental impairment reported in earnings. Reversals of the allowance for credit losses are permitted and should not exceed the allowance amount initially recognized. Changes in the allowance for credit losses are recorded as provision for (or reversal of) credit loss expense. There were no incremental impairment charges recorded during the quarter ended June 30, 2021. The adjusted cost and estimated market value of available-for-sale investments by contractual maturity were as follows:       June 30, 2021   March 31, 2021     Cost Amortized   Market Value Estimated   Cost Amortized   Market Value Estimated     (Unaudited)         (In thousands) Due in one year or less $ 57,753 $ 58,374 $ 90,142 $ 91,190 Due after one year through five years   590,448   627,370   562,442   601,818 Due after five years through ten years   641,992   694,439   672,733   754,536 Due after ten years   1,097,517   1,141,923   905,567   1,019,570     2,387,710   2,522,106   2,230,884   2,467,114                   Mortgage-backed securities   170,569   180,946   174,728   186,425 Redeemable preferred stocks   –   –   –   –   $ 2,558,279 $ 2,703,052 $ 2,405,612 $ 2,653,539   As of June 30, 2021 and March 31, 2021, our common stock and non-redeemable preferred stock that are included in Investments, fixed maturities and marketable equities on our balance sheet are stated in the table below. The changes in the fair value of these equity investments are recognized through Net investment and interest income. Equity investments of common stock and non-redeemable preferred stock were as follows:       June 30, 2021   March 31, 2021     Amortized   Estimated   Amortized   Estimated     (Unaudited)             (In thousands)                   Common stocks $ 9,775 $ 22,673 $ 9,775 $ 20,440 Non-redeemable preferred stocks   28,034   29,408   20,034   21,677   $ 37,809 $ 52,081 $ 29,809 $ 42,117
v3.21.2
Borrowings
 3 Months Ended
Jun. 30, 2021
Debt Disclosure [Abstract]  
4. Borrowings   4. Borrowings Long Term Debt Long term debt was as follows:                       June 30,   March 31,   2022 Rates (a)     Maturities   2021   2021                 (Unaudited)                     (In thousands) Real estate loan (amortizing term)       1.60 %       2023 $ 55,257 $   82,913 Senior mortgages 2.80 % - 6.62 %   2021 - 2038   2,122,167   2,125,324 Real estate loans (revolving credit) (a) 1.47 % - 3.14 %   2023 - 2025   535,000   535,000 Fleet loans (amortizing term) 1.61 % - 4.66 %   2022 - 2028   162,528   176,295 Fleet loans (revolving credit) 1.24 %   1.34 %   2023 - 2025   553,000   535,000 Finance leases (rental equipment) 1.92 % - 5.04 %   2021 - 2026   468,484   513,623 Finance liability (rental equipment) 1.60 % - 4.22 %   2024   2029   718,585   644,375 Other obligations 1.75 % - 8.00 %   2021 - 2049   87,106   86,085 Notes, loans and finance leases payable                   4,702,127   4,698,615 Less: Debt issuance costs                     (28,744)   (29,708) Total notes, loans and finance leases payable, net         $ 4,673,383 $   4,668,907                             (a) Certain loans have interest rate swaps fixing the rate between 3.03% and 3.14% based on current margins.     Real Estate Backed Loans Real Estate Loan Real Estate and certain of its subsidiaries and U-Haul Company of Florida are borrowers under a real estate loan (the “Real Estate Loan”).   The Real Estate Loan requires monthly principal and interest payments, with the unpaid loan balance and accrued and unpaid interest due at maturity. The Real Estate Loan is secured by various properties owned by the borrowers.   The interest rate, per the provisions of the amended loan agreement, is the applicable London Inter-Bank Offer Rate (“LIBOR”) plus the applicable margin. As of June 30, 2021, the applicable LIBOR was 0.10 % and the applicable margin was 1.50 %, the sum of which was 1.60 %. The default provisions of the Real Estate Loan include non-payment of principal or interest and other standard reporting and change-in-control covenants. There are limited restrictions regarding our use of the funds. Senior Mortgages Various subsidiaries of Real Estate and U-Haul are borrowers under certain senior mortgages. The senior mortgages require monthly principal and interest payments. The senior mortgages are secured by certain properties owned by the borrowers. The fixed interest rates, per the provisions of the senior mortgages, range between 2.80 % and 6.62 %. The weighted average interest rate of these loans as of June 30, 2021 was 4.27 %.   Certain senior mortgages have an anticipated repayment date and a maturity date. If these senior mortgages are not repaid by the anticipated repayment date, the interest rate on these mortgages would increase from the current fixed rate. We are using the anticipated repayment date for our maturity schedule. Real Estate and U-Haul have provided limited guarantees of the senior mortgages. The default provisions of the senior mortgages include non-payment of principal or interest and other standard reporting and change-in-control covenants. There are limited restrictions regarding our use of the funds. Real Estate Loans (Revolving Credit) Various subsidiaries of Real Estate are borrowers under asset-backed real estate loans with an aggregate borrowing capacity of $385.0 million. As of June 30, 2021, the outstanding balance of these loans in the aggregate was $385.0 million. These loans are secured by certain properties owned by the borrowers. The loan agreements provide for term loans, subject to the terms of the loan agreements. The loans require monthly interest payments with the unpaid loan balance and accrued and unpaid interest due at maturity. The interest rate, per the provision of the loan agreements, is the applicable LIBOR plus the applicable margin. As of June 30, 2021, the applicable LIBOR was between 0.08% and 0.09% and the margin was between 1.25% and 1.50%, the sum of which was between 1.34% and 1.59%. AMERCO is the guarantor of these loans. The default provisions of the loan include non-payment of principal or interest and other standard reporting and change-in-control covenants.   AMERCO is a borrower under a real estate loan. The current maximum credit commitment is $ 200.0 million, which can be increased to $ 300.0 million by bringing in other lenders. As of June 30, 2021, the outstanding balance was $ 150.0 million. This loan agreement provides for revolving loans, subject to the terms of the loan agreement. This loan requires monthly interest payments with the unpaid loan balance and accrued and unpaid interest due at maturity. As of June 30, 2021, the applicable LIBOR was 0.09 % and the margin was 1.38 %, the sum of which was 1.47 %. The default provisions of the loan include non-payment of principal or interest and other standard reporting and change-in-control covenants. There is a 0.30 % fee charged for unused capacity. Fleet Loans Rental Truck Amortizing Loans The amortizing loans require monthly principal and interest payments, with the unpaid loan balance and accrued and unpaid interest due at maturity. These loans were used to purchase new trucks. The interest rates, per the provision of the loan agreements, are carried at fixed rates ranging between 1.61 % and 4.66 %. All of our rental truck amortizing loans are collateralized by the rental equipment purchased. The majority of these loans are funded at 70%, but some may be funded at 100%. AMERCO, and in some cases U-Haul, is guarantor of these loans. The default provisions of these loans include non-payment of principal or interest and other standard reporting and change-in-control covenants. Rental Truck Revolvers Various subsidiaries of U-Haul entered into three revolving fleet loans with an aggregate borrowing capacity of $ 590.0 million. The interest rates, per the provision of the loan agreements, are the applicable LIBOR plus the applicable margin. As of June 30, 2021, the applicable LIBOR was 0.09 % and the margin was between 1.15 % and 1.25 %, the sum of which was between 1.24 % and 1.34 %. Of the $ 535.0 million outstanding, $ 100.0 million is fixed with an interest rate of 2.36 %. Only interest is paid on the loans until the last nine months of the respective loan terms when principal becomes due monthly. Finance Leases The Finance Lease balance represents our sale-leaseback transactions of rental equipment that were entered into and classified as capital leases prior to the adoption of Topic 842. The historical capital lease balance was reclassified to Right-of-Use (“ROU”) assets-finance, net. The agreements are generally seven (7) year terms with interest rates ranging from 1.92 % to 5.04 %.   All of our finance leases are collateralized by our rental fleet. The net book value of the corresponding rental equipment was $ 804.1 million and $ 865.6 million as of June 30, 2021 and March 31, 2021, respectively. There were no new financing leases, as assessed under the new leasing guidance, entered into during the first quarter of fiscal 2022. Finance Liabilities Finance liabilities represent our rental equipment financing transactions that have historically been accounted for as capital leases prior to the adoption of ASC 842 which substantially changed the accounting for sale-leasebacks going forward. In accordance with the new leasing guidance, we assess if sale-leaseback transactions qualify as a sale at initiation by determining if a transfer of ownership occurs.   We have determined that our equipment sale-leasebacks do not qualify as a sale, as the buyer-lessors do not obtain control of the assets in our ongoing sale-leaseback arrangements. As a result, we expect future sale-leasebacks to be accounted for as a financial liability and the leased assets will be capitalized at cost.     Our finance liabilities have an average term of seven (7) years and interest rates ranging from 1.60 % to 4.22 %. These finance liabilities are collateralized by our rental fleet.   Other Obligations In February 2011, AMERCO and U.S. Bank, NA (the “Trustee”) entered into the U-Haul Investors Club ® Indenture.   AMERCO and the Trustee entered into this indenture to provide for the issuance of notes by us directly to investors over our proprietary website, uhaulinvestorsclub.com (“U-Notes ® ”). The U-Notes ® are secured by various types of collateral including, but not limited to, rental equipment and real estate.   U-Notes ® are issued in smaller series that vary as to principal amount, interest rate and maturity.   U-Notes ® are obligations of the Company and secured by the associated collateral; they are not guaranteed by any of the Company’s affiliates or subsidiaries. As of June 30, 2021, the aggregate outstanding principal balance of the U-Notes® issued was $89.5 million, of which $2.4 million is held by our insurance subsidiaries and eliminated in consolidation. Interest rates range between 1.75% and 8.00% and maturity dates range between 2021 and 2049.   Oxford is a member of the Federal Home Loan Bank (“FHLB”) and, as such, the FHLB has made advances to Oxford. As of March 31, 2021, the advances had an aggregate balance of $ 70.5 million, for which Oxford pays fixed interest rates between 0.00 % and 1.72 % with maturities between June 8, 2021 and September 29, 2025. As of March 31, 2021, available-for-sale investments held with the FHLB totaled $ 134.3 million, of which $ 79.3 million were pledged as collateral to secure the outstanding advances. The balances of these advances are included within Liabilities from investment contracts on the condensed consolidated balance sheets.   Annual Maturities of Notes, Loans and Finance Leases Payable The annual maturities of our notes, loans and finance leases payable, as of June 30, 2021 for the next five years and thereafter are as follows:     Years Ending June 30,     2022   2023   2024   2025   2026   Thereafter     (Unaudited)     (In thousands) Notes, loans and finance leases payable, secured $ 510,380 $ 673,861 $ 1,152,549 $ 561,740 $ 410,089 $ 1,393,508 Interest on Borrowings Interest Expense Components of interest expense include the following:     Quarter Ended June 30,     2021   2020     (Unaudited)     (In thousands) Interest expense $ 38,935 $ 41,911 Capitalized interest   (2,030)   (4,434) Amortization of transaction costs   1,286   1,297 Interest expense resulting from cash flow hedges   987   747 Total interest expense $ 39,178 $ 39,521   Interest paid in cash, including payments related to derivative contracts, amounted to $ 36.1 million and $ 39.4 million for the first quarter of fiscal 2022 and 2021, respectively. Interest Rates Interest rates and Company borrowings were as follows:     Revolving Credit Activity       Quarter Ended June 30,       2021   2020       (Unaudited)       (In thousands, except interest rates)   Weighted average interest rate during the quarter   1.39 % 2.02 % Interest rate at the end of the quarter   1.38 % 1.67 % Maximum amount outstanding during the quarter $ 1,088,000 $ 1,175,000   Average amount outstanding during the quarter $ 1,073,055 $ 1,161,385   Facility fees $ 71 $ 4  
v3.21.2
Derivatives
 3 Months Ended
Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
5. Derivatives   5. Derivatives We manage exposure to changes in market interest rates. Our use of derivative instruments is limited to highly effective interest rate swaps to hedge the risk of changes in cash flows (future interest payments) attributable to changes in LIBOR swap rates with the designated benchmark interest rate being hedged on certain of our LIBOR indexed variable rate debt. The interest rate swaps effectively fix our interest payments on certain LIBOR indexed variable rate debt. We monitor our positions and the credit ratings of our counterparties and do not currently anticipate non-performance by the counterparties. Interest rate swap agreements are not entered into for trading purposes. These fair values are determined using pricing valuation models which include broker quotes for which significant inputs are observable. They include adjustments for counterparty credit quality and other deal-specific factors, where appropriate and are classified as Level 2 in the fair value hierarchy. The derivative fair values reflected in prepaid expense and accounts payable and accrued expenses in the condensed consolidated balance sheet were as follows:       June 30, 2021   March 31, 2021     (Unaudited)         (In thousands) Interest rate contracts designated as hedging instruments:         Assets $ – $ – Liabilities   4,222   5,141 Notional amount   235,000   235,000         The Effect of Interest Rate Contracts on the Statements of Operations for the Quarters Ended         June 30, 2021   June 30, 2020     (Unaudited)     (In thousands) (Gain) loss recognized in AOCI on interest rate contracts $ (919) $ (42) (Gain) loss reclassified from AOCI into income $ 987 $ 747   Gains or losses recognized in income on interest rate derivatives are recorded as interest expense in the condensed consolidated statements of operations. During the first quarter of fiscal 2022, we recognized an increase in the fair value of our cash flow hedges of $0.1 million, net of taxes. During the first quarter of fiscal 2022, we reclassified $0.7 million from accumulated other comprehensive income (loss) (“AOCI”) to interest expense. As of June 30, 2021, we expect to reclassify $ 3.9 million of net losses on interest rate contracts from AOCI to earnings as interest expense over the next twelve months.
v3.21.2
Accumulated Other Comprehensive Income (Loss)
 3 Months Ended
Jun. 30, 2021
Disclosure Text Block [Abstract]  
6. Comprehensive Income (Loss)   6. Accumulated Other Comprehensive Income (Loss) A summary of AOCI components, net of tax, were as follows:       Foreign Currency Translation   Unrealized Net Gain on Investments   Fair Market Value of Cash Flow Hedges   Postretirement Benefit Obligation Net Loss   Accumulated Other Comprehensive Income (Loss)     (Unaudited)     (In thousands) Balance at March 31, 2021 $ (52,929) $   167,653 $   (3,879) $   (3,988) $   106,857 Foreign currency translation   (3,392)   –   –   –   (3,392) Unrealized net losses on investments   –   (73,027)   –   –   (73,027) Change in fair value of cash flow hedges   –   –   (51)   –   (51) Amounts reclassified into earnings on hedging activities   –   –   745   –   745 Other comprehensive income (loss)   (3,392)   (73,027)   694   –   (75,725) Balance at June 30, 2021 $ ( 56,321 ) $   94,626 $   ( 3,185 ) $   ( 3,988 ) $   31,132
v3.21.2
Stockholders' Equity
 3 Months Ended
Jun. 30, 2021
Stockholders' Equity [Abstract]  
7. Stockholders' Equity 7. Stockholders’ Equity The following table lists the dividends that have been declared and issued for fiscal year 2022. Common Stock Dividends Declared Date   Per Share Amount   Record Date   Dividend Date               June 9, 2021 $ 0.50   June 24, 2021   July 8, 2021   As of June 30, 2021, no awards had been issued under the 2016 AMERCO Stock Option Plan.
v3.21.2
Leases
 3 Months Ended
Jun. 30, 2021
Leases [Abstract]  
8. Leases 8. Leases Lessor We have determined that revenues derived by providing self-moving equipment rentals, self-storage rentals and certain other revenues, including U-Box rentals, are within the scope of the accounting guidance contained in Topic 842. Our self-moving equipment rental related revenues have been accounted for under the revenue accounting standard Topic 606, until the adoption of Topic 842. We combined all lease and non-lease components of lease contracts for which the timing and pattern of transfer are the same and the lease component meets the classification of an operating lease, and account for them in accordance with Topic 842. The revenue streams accounted for in accordance with Topic 842 are recognized evenly over the period of rental. Please see Note 15, Revenue Recognition, to the Notes to Condensed Consolidated Financial Statements. Lessee We determine if an arrangement is a lease at inception. Operating leases, which are comprised primarily of storage rental locations, are included in ROU assets - operating and operating lease liability in our condensed consolidated balance sheets. Finance leases, which are comprised primarily of rental equipment leases, are included in ROU assets - financing, net, and notes, loans and finance leases payable, net in our balance sheets. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the expected remaining lease term. We use our incremental borrowing rate based on information available at commencement date including the rate for a fully collateralized loan that can either be fully amortizing or financed with a residual at the end of the lease term, for a borrower with similar credit quality in order to determine the present value of lease payments. Our lease terms may include options to extend or terminate the lease, which are included in the calculation of ROU assets when it is reasonably certain that we will exercise those options. Lease expense for lease payments is recognized on a straight-line basis over the lease term.   We have lease agreements with lease and non-lease components, which are generally not accounted for separately. Additionally, for certain leases, we apply a portfolio approach to account for the operating lease ROU assets and liabilities as the leases are similar in nature and have nearly identical contract provisions. The standard also changed the manner by which we account for our equipment sale/leaseback transactions.   Based on our assessment, the lease transactions are classified as financing leases, and therefore the transactions do not qualify as a sale.   Pursuant to the guidance, new sale leaseback transactions that fail to qualify as a sale will be accounted for as a financial liability.   Please see Note 4, Borrowings, of the Notes to Condendsed Consolidated Financial Statements for additional information. The following tables show the components of our ROU assets, net:     As of June 30, 2021     Finance   Operating   Total     (Unaudited)     (In thousands) Buildings and improvements $ – $ 135,174 $ 135,174 Furniture and equipment   22,176   –   22,176 Rental trailers and other rental equipment   197,981   –   197,981 Rental trucks   1,395,144   –   1,395,144 Right-of-use assets, gross   1,615,301   135,174   1,750,475 Less: Accumulated depreciation   (800,426)   (45,805)   (846,231) Right-of-use assets, net $ 814,875 $ 89,369 $ 904,244       As of March 31, 2021     Finance   Operating   Total     (In thousands) Buildings and improvements $ – $ 132,901 $ 132,901 Furniture and equipment   22,316   –   22,316 Rental trailers and other rental equipment   203,594   –   203,594 Rental trucks   1,494,098   –   1,494,098 Right-of-use assets, gross   1,720,008   132,901   1,852,909 Less: Accumulated depreciation   (842,970)   (40,396)   (883,366) Right-of-use assets, net $ 877,038 $ 92,505 $ 969,543   As of June 30, 2021 and March 31, 2021, we had finance leases for the ROU assets, net of $ 468.5 million and $ 513.6 million, respectively and operating leases of $ 89.4 million and $ 92.5 million, respectively.       Finance leases       June 30,   March 31,       2021   2021               Weighted average remaining lease term (years)   3   3   Weighted average discount rate   3.6 % 3.6 %       Operating leases       June 30,   March 31,       2021   2021               Weighted average remaining lease term (years)   14.8   14.7   Weighted average discount rate   4.6 % 4.6 %   For the quarters ended June 30, 2021 and 2020, cash paid for leases included in our operating cash flow activities were $ 7.5 million and $ 7.0 million, respectively, and our financing cash flow activities were $ 45.2 million and $ 68.6 million, respectively.   Non-cash activities of ROU assets in exchange for lease liablities were $2.4 million and $4.7 million for the first quarter of fiscal 2022 and 2021, respectively. The components of lease costs were as follows:       Three Months Ended     June 30, 2021   June 30, 2020     (Unaudited)     (In thousands)           Operating lease costs $ 8,077 $ 7,137           Finance lease cost:         Amortization of right-of-use assets $ 183,277 $ 40,836 Interest on lease liabilities   4,571   6,282 Total finance lease cost $ 187,848 $ 47,118 Maturities of lease liabilities were as follows:       Finance leases   Operating leases     (Unaudited) Years ending June 30,   (In thousands)           2022 $ 168,277 $ 24,926 2023   132,482   22,560 2024   98,586   21,418 2025   68,555   6,414 2026   35,679   3,560 Thereafter   –   61,302 Total lease payments   503,579   140,180 Less: imputed interest   (35,095)   (50,790) Present value of lease liabilities $ 468,484 $ 89,390
v3.21.2
Contingencies
 3 Months Ended
Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]  
9. Contingencies 9. Contingencies COVID-19 In March 2020, the World Health Organization declared COVID-19 a global pandemic, and governmental authorities around the world have implemented measures to reduce the spread of COVID-19. These measures along with the threat the virus poses have adversely affected workforces, customers, consumer sentiment, economies and financial markets. The Company has been impacted by the spread of COVID-19. The extent to which COVID-19 impacts the Company’s business, operations and financial results will continue to evolve in ways that the Company is not fully able to predict at this time.   We have experienced customer initiated changes in behavior, actions by government entities, concerns from our workforce, and reactions from the capital markets.   Although the Company cannot estimate the length or gravity of the impact of COVID-19 at this time, if the pandemic continues, it may have a material adverse effect on the Company’s results of future operations, financial position and liquidity in fiscal 2022, and beyond.   CARES Act The Coronavirus Aid, Relief and Economic Security Act (“CARES Act”), among other things, includes provisions relating to refundable payroll tax credits, deferment of employer side social security payments, net operating loss carryback periods, alternative minimum tax credit refunds, modifications to the net interest deduction limitations, increased limitations on qualified charitable contributions, and technical corrections to tax depreciation methods for qualified improvement property. As a result of the federal income tax provisions of the CARES Act, we have filed applicable forms with the Internal Revenue Service (“IRS”) to carryback net operating losses. These refund claims total approximately $ 366 million, of which we have received approximately $159 million in the first quarter of fiscal 2022 and another approximately $84 million in July 2021 and are reflected in Prepaid expense. As refunds are received, they will reduce this amount. We have estimated and recorded the overall effects of the CARES Act and do not anticipate a material change. It is possible future legislation could reduce or delay our ability to carryback these losses. Environmental Compliance with environmental requirements of federal, state and local governments may significantly affect Real Estate’s business operations. Among other things, these requirements regulate the discharge of materials into the air, land and water and govern the use and disposal of hazardous substances. Real Estate is aware of issues regarding hazardous substances on some of its properties. Real Estate regularly makes capital and operating expenditures to stay in compliance with environmental laws and has put in place a remedial plan at each site where it believes such a plan is necessary. Based upon the information currently available to Real Estate, compliance with the environmental laws and its share of the costs of investigation and cleanup of known hazardous waste sites are not expected to result in a material adverse effect on AMERCO’s financial position or results of operations. Other We are named as a defendant in various other litigation and claims arising out of the normal course of business. In management’s opinion, none of these other matters will have a material effect on our financial position and results of operations.
v3.21.2
Related Party Transactions
 3 Months Ended
Jun. 30, 2021
Related Party Transactions [Abstract]  
10. Related Party Transactions 10. Related Party Transactions As set forth in the Company’s Audit Committee Charter and consistent with NASDAQ Listing Rules, our Audit Committee (the “Audit Committee”) reviews and maintains oversight over related party transactions, which are required to be disclosed under the Securities and Exchange Commission (“SEC”) rules and regulations and in accordance with generally accepted accounting principles (“GAAP”). Accordingly, all such related party transactions are submitted to the Audit Committee for ongoing review and oversight. Our internal processes are designed to ensure that our legal and finance departments identify and monitor potential related party transactions that may require disclosure and Audit Committee oversight. AMERCO has engaged in related party transactions and has continuing related party interests with certain major stockholders, directors and officers of the consolidated group as disclosed below. SAC Holding Corporation and SAC Holding II Corporation (collectively “SAC Holdings”) were established in order to acquire and develop self-storage properties. These properties are being managed by us pursuant to management agreements. In the past, we sold real estate and various self-storage properties to SAC Holdings, and such sales provided significant cash flows to us. SAC Holdings, Four SAC Self-Storage Corporation, Five SAC Self-Storage Corporation, Galaxy Investments, L.P. and 2015 SAC-Self-Storage, LLC are substantially controlled by Blackwater Investments, Inc. (“Blackwater”). Blackwater is wholly owned by Willow Grove Holdings LP (“WGHLP”), which is owned by Mark V. Shoen (a significant stockholder), and various trusts associated with Edward J. Shoen (our Chairman of the Board, President and a significant stockholder) and Mark V. Shoen Related Party Revenue       Quarter Ended June 30,     2021   2020     (Unaudited)     (In thousands) U-Haul management fee revenue from Blackwater $ 7,180 $ 6,148 U-Haul management fee revenue from Mercury   1,269   1,199   $ 8,449 $ 7,347   We currently manage the self-storage properties owned or leased by Blackwater and Mercury Partners, L.P. (“Mercury”), pursuant to a standard form of management agreement, under which we receive a management fee of between 4 % and 10 % of the gross receipts plus reimbursement for certain expenses. We received management fees, exclusive of reimbursed expenses, of $ 11.3 million and $ 10.1 million from the above-mentioned entities during the first quarter of fiscal 2022 and 2021, respectively. This management fee is consistent with the fee received for other properties we previously managed for third parties. Mark V. Shoen controls the general partner of Mercury. The limited partner interests of Mercury are owned indirectly by James P. Shoen and various trusts benefitting Edward J. Shoen and James P. Shoen or their descendants.   Mercury holds the option to purchase a portfolio of properties currently leased by Mercury and a U-Haul subsidiary, which option is exercisable in 2024. Related Party Costs and Expenses       Quarter Ended June 30,     2021   2020     (Unaudited)     (In thousands) U-Haul lease expenses to Blackwater $ 626 $ 657 U-Haul commission expenses to Blackwater   22,880   15,332   $ 23,506 $ 15,989   We lease space for marketing company offices, vehicle repair shops and hitch installation centers from subsidiaries of Blackwater. The terms of the leases are similar to the terms of leases for other properties owned by unrelated parties that are leased to us. As of June 30, 2021, subsidiaries of Blackwater acted as independent dealers. The financial and other terms of the dealership contracts are substantially identical to the terms of those with our other independent dealers whereby commissions are paid by us based upon equipment rental revenues. These agreements with subsidiaries of Blackwater, excluding Dealer Agreements, provided revenues of $ 7.2 million, expenses of $0.6 million and cash flows of $ 6.4 million during the first quarter of fiscal 2022. Revenues and commission expenses related to the Dealer Agreements were $ 108.6 million and $22.9 million, respectively, during the first quarter of fiscal 2022. Management determined that we do not have a variable interest pursuant to the variable interest entity model under Accounting Standards Codification (“ASC”) 810 – Consolidation in the holding entities of Blackwater based upon management agreements which are with the individual operating entities; therefore, we are precluded from consolidating these entities. Related Party Assets       June 30,   March 31,     2021   2021     (Unaudited)         (In thousands) U-Haul receivable from Blackwater $ 28,840 $ 27,116 U-Haul receivable from Mercury   6,371   9,632 Other (a)   (730)   (1,353)   $ 34,481 $ 35,395 (a)       Timing differences for intercompany balances with insurance subsidiaries resulting from the three-month difference in reporting periods.
v3.21.2
Consolidating Financial Information by Industry Segment
 3 Months Ended
Jun. 30, 2021
Segment Reporting [Abstract]  
11. Consolidating Financial Information by Industry Segment   11. Consolidating Financial Information by Industry Segment   AMERCO’s three reportable segments are:   Moving and Storage, comprised of AMERCO, U-Haul, and Real Estate and the subsidiaries of UHaul and Real Estate,   Property and Casualty Insurance, comprised of Repwest and its subsidiaries and ARCOA, and   Life Insurance, comprised of Oxford and its subsidiaries.   Management tracks revenues separately, but does not report any separate measure of the profitability for rental vehicles, rentals of self-storage spaces and sales of products that are required to be classified as a separate operating segment and accordingly does not present these as separate reportable segments. Deferred income taxes are shown as liabilities on the condensed consolidating statements. The information includes elimination entries necessary to consolidate AMERCO, the parent, with its subsidiaries. Investments in subsidiaries are accounted for by the parent using the equity method of accounting.
v3.21.2
Industry Segment and Geographic Area Data
 3 Months Ended
Jun. 30, 2021
Segments, Geographical Areas [Abstract]  
12. Industry Segment and Geographic Area Data 12. Industry Segment and Geographic Area Data     United States   Canada   Consolidated     (Unaudited)     (All amounts are in thousands of U.S. $'s) Quarter Ended June 30, 2021             Total revenues $ 1,396,361 $ 76,495 $ 1,472,856 Depreciation and amortization, net of gains on disposal   127,650   (1,540)   126,110 Interest expense   38,128   1,050   39,178 Pretax earnings   437,949   16,801   454,750 Income tax expense   105,302   4,273   109,575 Identifiable assets   14,661,722   453,160   15,114,882               Quarter Ended June 30, 2020             Total revenues $ 942,803 $ 44,434 $ 987,237 Depreciation and amortization, net of gains on disposal   168,526   3,777   172,303 Interest expense   38,654   867   39,521 Pretax earnings   111,949   2,369   114,318 Income tax expense   25,783   809   26,592 Identifiable assets   13,279,882   432,477   13,712,359
v3.21.2
Employee Benefit Plans
 3 Months Ended
Jun. 30, 2021
Compensation and Retirement Disclosure [Abstract]  
13. Employee Benefit Plans 13. Employee Benefit Plans The components of the net periodic benefit costs with respect to postretirement benefits were as follows:       Quarter Ended June 30,     2021   2020     (Unaudited)     (In thousands)           Service cost for benefits earned during the period $ 350 $   317 Other components of net periodic benefit costs:         Interest cost on accumulated postretirement benefit   227   230 Other components   53   17 Total other components of net periodic benefit costs   280   247 Net periodic postretirement benefit cost $ 630 $   564
v3.21.2
Fair Value Measurements
 3 Months Ended
Jun. 30, 2021
Fair Value Disclosures [Abstract]  
14. Fair Value Measurements 14. Fair Value Measurements Certain assets and liabilities are recorded at fair value on the consolidated balance sheets and are measured and classified based upon a three-tiered approach to valuation. Financial assets and liabilities are recorded at fair value and are classified and disclosed in one of the following three categories: Level 1 – Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;   Level 2 – Quoted prices for identical or similar financial instruments in markets that are not considered to be active, or similar financial instruments for which all significant inputs are observable, either directly or indirectly, or inputs other than quoted prices that are observable, or inputs that are derived principally from or corroborated by observable market data through correlation or other means; and Level 3 – Prices or valuations that require inputs that are both significant to the fair value measurement and are unobservable. These reflect management’s assumptions about the assumptions a market participant would use in pricing the asset or liability. A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.   Fair values of cash equivalents approximate carrying value due to the short period of time to maturity. Fair values of short-term investments, investments available-for-sale, long-term investments, mortgage loans and notes on real estate, and interest rate swap contracts are based on quoted market prices, dealer quotes or discounted cash flows. Fair values of trade receivables approximate their recorded value. Our financial instruments that are exposed to concentrations of credit risk consist primarily of temporary cash investments, trade receivables, reinsurance recoverables and notes receivable. Limited credit risk exists on trade receivables due to the diversity of our customer base and their dispersion across broad geographic markets. We place our temporary cash investments with financial institutions and limit the amount of credit exposure to any one financial institution. We have mortgage receivables, which potentially expose us to credit risk. The portfolio of notes is principally collateralized by self-storage facilities and commercial properties. We have not experienced any material losses related to the notes from individual or groups of notes in any particular industry or geographic area. The estimated fair values were determined using the discounted cash flow method and using interest rates currently offered for similar loans to borrowers with similar credit ratings. The carrying amount of long-term debt and short-term borrowings are estimated to approximate fair value as the actual interest rate is consistent with the rate estimated to be currently available for debt of similar term and remaining maturity. Other investments, including short-term investments, are substantially current or bear reasonable interest rates. As a result, the carrying values of these financial instruments approximate fair value. The carrying values and estimated fair values for the financial instruments stated above and their placement in the fair value hierarchy are as follows:       Fair Value Hierarchy     Carrying               Total Estimated As of June 30, 2021   Value   Level 1   Level 2   Level 3   Fair Value     (Unaudited) Assets   (In thousands) Reinsurance recoverables and trade receivables, net $ 233,056 $ – $ – $ 233,056 $ 233,056 Mortgage loans, net   428,140   –   –   428,140   428,140 Other investments   97,753   –   –   97,753   97,753 Total $ 758,949 $ – $ – $ 758,949 $ 758,949                                             Liabilities                     Notes, loans and finance leases payable   4,702,127   –   4,702,127   –   4,497,078 Total $ 4,702,127 $ – $ 4,702,127 $ – $ 4,497,078       Fair Value Hierarchy     Carrying               Total Estimated As of March 31, 2021   Value   Level 1   Level 2   Level 3   Fair Value     (In thousands) Assets                     Reinsurance recoverables and trade receivables, net $ 224,426 $ – $ – $ 224,426 $ 224,426 Mortgage loans, net   391,230   –   –   391,230   391,230 Other investments   98,529   –   –   98,529   98,529 Total $ 714,185 $ – $ – $ 714,185 $ 714,185                                             Liabilities                     Notes, loans and finance leases payable   4,698,615   –   4,698,615   –   4,449,691 Total $ 4,698,615 $ – $ 4,698,615 $ – $ 4,449,691   The following tables represent the financial assets and liabilities on the condensed consolidated balance sheets as of June 30, 2021 and March 31, 2021 that are measured at fair value on a recurring basis and the level within the fair value hierarchy.   As of June 30, 2021   Total   Level 1   Level 2   Level 3     (Unaudited) Assets   (In thousands) Short-term investments $ 1,311,376 $ 1,311,376 $ – $ – Fixed maturities - available for sale   2,703,053   7,185   2,695,712   156 Preferred stock   29,408   29,408   –   – Common stock   22,672   22,672   –   – Derivatives   6,789   6,789   –   – Total $ 4,073,298 $ 1,377,430 $ 2,695,712 $ 156                                     Liabilities                 Derivatives   4,222   –   4,222   – Total $ 4,222 $ – $ 4,222 $ –     As of March 31, 2021   Total   Level 1   Level 2   Level 3     (In thousands) Assets                 Short-term investments $ 839,250 $ 839,250 $ – $ – Fixed maturities - available for sale   2,653,539   6,967   2,646,415   157 Preferred stock   21,677   21,677   –   – Common stock   20,440   20,440   –   – Derivatives   6,601   6,601   –   – Total $ 3,541,507 $ 894,935 $ 2,646,415 $ 157                                     Liabilities                 Derivatives   5,141   –   5,141   – Total $ 5,141 $ – $ 5,141 $ –   The fair value measurements for our assets using significant unobservable inputs (Level 3) were $ 0.2 million for both June 30, 2021 and March 31, 2021.
v3.21.2
Revenue Recognition
 3 Months Ended
Jun. 30, 2021
Revenue From Contract With Customer [Abstract]  
Revenue Recognition 15. Revenue Recognition Revenue Recognized in Accordance with Topic 606 ASC Topic 606, Revenue from Contracts with Customers (Topic 606), outlines a five-step model for entities to use in accounting for revenue arising from contracts with customers. The standard applies to all contracts with customers except for leases, insurance contracts, financial instruments, certain nonmonetary exchanges and certain guarantees. The standard also requires disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments.   We enter into contracts that may include various combinations of products and services, which are generally capable of being distinct and accounted for as separate performance obligations. Revenue is recognized net of amounts collected from customers for taxes, such as sales tax, and remitted to the applicable taxing authorities. We account for a contract under Topic 606 when it has approval and commitment from both parties, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectability of consideration is probable. For contracts scoped into this standard, revenue is recognized when (or as) the performance obligations are satisfied by means of transferring goods or services to the customer as applicable to each revenue stream as discussed below. There were no material contract assets or liabilities as of June 30, 2021 and March 31, 2021. Sales of self-moving and self-storage related products are recognized at the time that title passes and the customer accepts delivery. The performance obligations identified for this portfolio of contracts include moving and storage product sales, installation services and/or propane sales. Each of these performance obligations has an observable stand-alone selling price. We concluded that the performance obligations identified are satisfied at a point in time under Topic 606, which is consistent with the timing of our revenue recognition under legacy guidance. The basis for this conclusion is that the customer does not receive the product/propane or benefit from the installation services until the related performance obligation is satisfied. These products/services being provided have an alternative use as they are not customized and can be sold/provided to any customer. In addition, we only have the right to receive payment once the products have been transferred to the customer or the installation services have been completed. Although product sales have a right of return policy, our estimated obligation for future product returns is not material to the financial statements at this time. Property management fees are recognized over the period that agreed-upon services are provided. The performance obligation for this portfolio of contracts is property management services, which represents a series of distinct days of service, each of which is comprised of activities that may vary from day to day. However, those tasks are activities to fulfill the property management services and are not separate promises in the contract. We determined that each increment of the promised service is distinct in accordance with paragraph 606-10-25-19. This is because the customer can benefit from each increment of service on its own and each increment of service is separately identifiable because no day of service significantly modifies or customizes another and no day of service significantly affects either the entity’s ability to fulfill another day of service or the benefit to the customer of another day of service. As such, we concluded that the performance obligation is satisfied over time under Topic 606, which is consistent with the timing of our revenue recognition under legacy guidance for the Management Fee component of the compensation received in exchange for the service. Additionally, in certain contracts the Company has the ability to earn an incentive fee based on operational results. Historically, these fees have been recognized once fully determinable. Under Topic 606, we measure and recognize the progress toward completion of the performance obligation on a quarterly basis using the most likely amount method to determine an accrual for the incentive fee portion of the compensation received in exchange for the property management service. The variable consideration recognized is subject to constraints due to a range of possible consideration amounts based on actual operational results. The amount accrued in the first quarter of fiscal 2022 did not have a material effect on our financial statements. Other revenue consists of numerous services or rentals, of which U-Box contracts and service fees from Moving Help are the main components. The performance obligations identified for U-Box contracts are fees for rental, storage and shipping of U-Box containers to a specified location, each of which are distinct. A contract may be partially within the scope of Topic 606 and partially within the scope of other topics. The rental and storage obligations in U-Box contracts meet the definition of a lease in Topic 842, while the shipping obligation represents a contract with a customer accounted for under Topic 606. Therefore, we allocate the total transaction price between the performance obligations of storage fees and rental fees and the shipping fees on a standalone selling price basis. U-Box shipping fees are collected once the shipment is in transit. Shipping fees in U-Box contracts are set at the initiation of the contract based on the shipping origin and destination, and the performance obligation is satisfied over time under Topic 606 which is consistent with the timing of our revenue recognition under legacy guidance. U-Box shipping contracts span over a relatively short period of time, and the majority of these contracts begin and end within the same fiscal year. Moving Help services fees are recognized in accordance with Topic 606. Moving Help services are generated as we provide a neutral venue for the connection between the service provider and the customer for agreed upon services. We do not control the specified services provided by the service provider before that service is transferred to the customer. Revenue Recognized in Accordance withTopic 842/840 The Company’s self-moving rental revenues meet the definition of a lease pursuant to the guidance in Topic 842 because those substitution rights do not provide an economic benefit to the Company that would exceed the cost of exercising the right.  Therefore, upon adoption of Topic 842 on April 1, 2019, self-rental contracts are being accounted for as leases.  We do not expect this change to result in a change in the timing and pattern of recognition of the related revenues due to the short-term nature of the self-moving rental contracts. Please see Note 8, Leases, of the Notes to the Condensed Consolidated Financial Statements.   Self-moving rentals are recognized over the contract period that trucks and moving equipment are rented. We offer two types of self-moving rental contracts, one-way rentals and in-town rentals, which have varying payment terms. Customer payment is received at the initiation of the contract for one-way rentals which covers an allowable limit for equipment usage. An estimated fee in the form of a deposit is received at the initiation of the contract for in-town rentals, and final payment is received upon the return of the equipment based on actual fees incurred. The contract price is estimated at the initiation of the contract, as there is variable consideration associated with ratable fees incurred based on the number of days the equipment is rented and the number of miles driven. Variable consideration is estimated using the most likely amount method which is based on the intended use of the rental equipment by the customer at the initiation of the contract. Historically, the variability in estimated transaction pricing compared to actual is not significant due to the relatively short duration of rental contracts. Each performance obligation has an observable stand-alone selling price. The input method of passage of time is appropriate as there is a direct relationship between our inputs and the transfer of benefit to the customer over the life of the contract. Self-moving rental contracts span a relatively short period of time, and the majority of these contracts began and ended within the same fiscal year. Self-storage revenues are recognized as earned over the contract period based upon the number of paid storage contract days. We lease portions of our operating properties to tenants under agreements that are classified as operating leases. We recognize the total minimum lease payments provided for under the leases on a straight-line basis over the lease term. Generally, under the terms of our leases, the majority of our rental expenses, including common area maintenance, real estate taxes and insurance, are recovered from our customers. The following table summarizes the minimum lease payments due from our customers and operating property tenants on leases for the next five years and thereafter:       Years Ending June 30,     2022   2023   2024   2025   2026   Thereafter     (Unaudited)     (In thousands)                           Self-moving equipment rentals $ 6,560 $ – $ – $ – $ – $ – Property lease revenues   16,072   12,621   8,866   6,856   5,398   53,835 Total $ 22,632 $ 12,621 $ 8,866 $ 6,856 $ 5,398 $ 53,835   The amounts above do not reflect future rental revenue from the renewal or replacement of existing leases. Revenue Recognized in Accordance with Other Topics Traditional life and Medicare supplement insurance premiums are recognized as revenue over the premium-paying periods of the contracts when due from the policyholders. For products where premiums are due over a significantly shorter duration than the period over which benefits are provided, such as our single premium whole life product, premiums are recognized when received and excess profits are deferred and recognized in relation to the insurance in force. Life insurance premiums are recognized in accordance with existing guidance in Topic 944 – Financial Services – Insurance. Property and casualty insurance premiums are recognized as revenue over the policy periods. Interest and investment income are recognized as earned. Property and casualty premiums are recognized in accordance with existing guidance in Topic 944 – Financial Services – Insurance. Net investment and interest income has multiple components. Interest income from bonds and mortgage notes are recognized when earned. Dividends on common and preferred stocks are recognized on the ex-dividend dates. Realized gains and losses on the sale or exchange of investments are recognized at the trade date. Net investment and interest income is recognized in accordance with existing guidance in Topic 825 – Financial Instruments.   In the following table, revenue is disaggregated by timing of revenue recognition:     Quarter Ended June 30,     2021   2020     (Unaudited)     (In thousands)           Revenues recognized over time: $   79,815 $   44,938 Revenues recognized at a point in time:   120,718   104,848 Total revenues recognized under ASC 606   200,533   149,786           Revenues recognized under ASC 842 or 840   1,191,010   774,694 Revenues recognized under ASC 944   46,314   45,775 Revenues recognized under ASC 320   34,999   16,982 Total revenues $   1,472,856 $   987,237 In the above table, the revenues recognized over time include property management fees, the shipping fees associated with U-Box rentals and a portion of other revenues. Revenues recognized at a point in time include self-moving equipment rentals, self-moving and self-storage products and service sales and a portion of other revenues . We recognized liabilities resulting from contracts with customers for self-moving equipment rentals, self-storage revenues, U-Box revenues and tenant revenue, in which the length of the contract goes beyond the reported period end, although rental periods of the equipment, storage and U-Box contract are generally short-term in nature. The timing of revenue recognition results in liabilities that are reflected in deferred income on the balance sheet.
v3.21.2
Allowance for Credit Losses
 3 Months Ended
Jun. 30, 2021
Allowance For Credit Loss [Abstract]  
Allowance For Credit Losses [Text Block] 16. Allowance for Credit Losses Trade Receivables Moving and Storage has two ( 2 ) primary components of trade receivables, receivables from corporate customers and credit card receivables from sales and rental of equipment.   For credit card receivable, the Company uses a trailing 13 months average historical chargeback percentage of total credit card receivable. The Company rents equipment to corporate customers in which payment terms are 30 days. The Company performs ongoing credit evaluations of its customers and assesses each customer’s credit worthiness. In addition, the Company monitors collections and payments from its customers and maintains an allowance based upon applying an expected credit loss rate to receivables based on the historical loss rate from similar high-risk customers adjusted for current conditions, including any specific customer collection issues identified, and forecasts of economic conditions. Delinquent account balances are written off after management has determined that the likelihood of collection is remote. Management believes that the historical loss information it has compiled is a reasonable base on which to determine expected credit losses for trade receivables because the composition of trade receivables as of that date is consistent with that used in developing the historical credit-loss percentages (i.e., the similar risk characteristics of its customers and its lending practices have not changed significantly over time).   To adjust the historical loss rates to reflect the effects of these differences in current conditions and forecasted changes, management assigns a rating to each customer which varies depending on the assessment of risk. Management estimated the loss rate at approximately 2%. Management developed this estimate based on its knowledge of past experience for which there were similar improvements in the economy. As a result, management applied the applicable credit loss rates to determine the expected credit loss estimate for each aging category. Accordingly, the allowance for expected credit losses as of June 30, 2021 was $ 2.5 million. Available-for-Sale For available-for-sale debt securities in an unrealized loss position, we first assess whether the security is below investment grade.  For securities that are below investment grade, we evaluate whether the decline in fair value has resulted from credit losses or other factors such as the interest rate environment.  In making this assessment, management considers the extent to which fair value is less than amortized cost, any changes to the rating of the security by a rating agency, and adverse market conditions specifically related to the security, among other factors.  If this assessment indicates that a credit loss exists, cumulative default rates based on ratings are used to determine the potential cost of default, by year.  The present value of these potential costs is then compared to the amortized cost of the security to determine the credit loss, limited by the amount that the fair value is less than the amortized cost basis.   Declines in fair value that have not been recorded through an allowance for credit losses, such as declines due to changes in market interest rates, are recorded through accumulated other comprehensive income, net of applicable taxes. If we intend to sell a security, or it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis, the security is written down to its fair value and the write down is charged against the allowance for credit losses, with any incremental impairment reported in earnings. Reversals of the allowance for credit losses are permitted and should not exceed the allowance amount initially recognized. Changes in the allowance for credit losses are recorded as provision for (or reversal of) credit loss expense. There were no incremental impairment charges recorded during the quarter ended June 30, 2021. Accrued Interest Receivable Accrued interest receivables on available for sale securities totaled $ 26.6 million as of March 31, 2021 and are excluded from the estimate of credit losses. As outlined in subtopic 326-20-30-5A, we have elected not to measure an allowance on accrued interest receivables as our practice is to write off the uncollectible balance in a timely manner. Furthermore, we have elected to wrtie off accrued interest receivables by reversing interest income (in accordance with subtopic 326-20-35-8A). Mortgage loans, net Loans that management has the intent and ability to hold for the foreseeable future, or until maturity or payoff, are reported at amortized cost.   An allowance for credit losses is determined using a similar methodology as before the adoption of Topic 326.   Modeling for the Company’s mortgage loans is based on inputs most highly correlated to defaults, including loan-to-value, occupancy, and payment history. Historical credit loss experience provides additional support for the estimation of expected credit losses. In assessing the credit losses, the portfolio is reviewed on a collective basis, using loan-specific cash flows to determine the fair value of the collateral in the event of default.   Adjustments to this analysis are made to assess loans with a loan-to-value of 65% or greater. These loans are evaluated on an individual basis and loan specific risk characteristics such as occupancy levels, expense, income growth and other relevant available information from internal and external sources relating to past events, current conditions, and reasonable and supportable forecasts. When management determines that foreclosure is probable, an allowance for expected credit losses based on the fair value of the collateral is recorded. Reinsurance recoverable Reinsurance recoverable on paid and unpaid benefits was less than 1 % of the total assets as of March 31, 2021 which is immaterial based on historical loss experience and high credit rating of the reinsurers. Premium receivables Premium receivables   were $ 2.6 million as of March 31, 2021 in which the credit loss allowance is immaterial based on our ability to cancel the policy if the policyholder doesn't pay premiums. The following details the changes in the Company’s reserve allowance for credit losses for trade receivables, fixed maturities and investments, other:       Allowance for Credit Losses     Trade Receivables   Investments, Fixed Maturities   Investments, other   Total     (Unaudited)     (in thousands) Balance as of March 31, 2021 $ 2,835 $ 1,320 $ 501 $ 4,656 Allowance change   (291)   (279)   4   (566) Write-offs against allowance   –   –   –   – Recoveries   –   –   –   – Balance as of June 30, 2021 $ 2,544 $ 1,041 $ 505 $ 4,090
v3.21.2
Accounting Pronouncements
 3 Months Ended
Jun. 30, 2021
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]  
New Accounting Pronouncements And Changes In Accounting Principles [Text Block]   17.   Accounting Pronouncements Adoption of New Accounting Pronouncements In April 1, 2021, we adopted ASU 2020-08, Clarifying Guidance on Amortization of the Excess of the Cost Basis of Certain Callable Debt Securities Over the Amount Repayable . This standard requires that, for each reporting period, callable debt securities be reevaluated to determine if they remain subject to the guidance, which will depend on the amortized cost basis of the security and the terms of the next call option. The guidance is effective for fiscal years beginning after December 15, 2020. The adoption of the standard did not have a material impact on our consolidated financial statements. Recent Accounting Pronouncements In August 2018, the Financial Accounting Standards Board (“FASB”) issued ASU 2018-12, Targeted Improvements to the Accounting for Long-Duration Contracts (“ASU 2018-12”). The amendments in this update require insurance companies to annually review and update the assumptions used for measuring the liability under long-duration contracts, such as life insurance, disability income, and annuities. The amendment prescribes standardized liability discount rate, consistency in measurement of market risk benefits, simplified amortization of deferred acquisition costs and enhanced disclosures. The amendments are effective for fiscal years, and interim periods within those fiscal years, beginning after December 31, 2020. In November 2020, FASB issued ASU 2020-11, Financial Services – Insurance (Topic 944) , which deferred the effective date of ASU 2018-12 to years beginning after December 15, 2022. We are currently in the process of evaluating the impact of the adoption of ASU 2018-12 on our financial statements; however, the adoption of ASU 2018-12 will impact the statements of operations because the effect of any update to the assumptions we used at the inception of the contracts will be recorded in net income. In March 2020, FASB issued ASU 2020-04, Reference Rate Reform (Topic 848), Facilitation of the Effects of Reference Rate Reform on Financial Reporting (“ASU 2020-04”). This standard provides temporary optional expedients and exceptions to the US GAAP guidance on contract modifications and hedge accounting to ease the financial reporting burdens of the expected market transition from the LIBOR and other interbank offered rates to alternative reference rates, such as Secured Overnight Financing Rate. Entities can elect not to apply certain modification accounting requirements to contracts affected by what the guidance calls reference rate reform, if certain criteria are met. An entity that makes this election would not have to remeasure the contracts at the modification date or reassess a previous accounting determination. The guidance is effective upon issuance and generally can be applied through December 31, 2022. We are currently evaluating the impact of this standard on our consolidated financial statements. From time to time, new accounting pronouncements are issued by the FASB or the SEC that are adopted by us as of the specified effective date. Unless otherwise discussed, these ASUs entail technical corrections to existing guidance or affect guidance related to specialized industries or entities and therefore will have minimal, if any, impact on our financial position or results of operations upon adoption.
v3.21.2
Subsequent Events
 3 Months Ended
Jun. 30, 2021
Subsequent Events [Abstract]  
Subsequent Events 18. Subsequent Events Financial Strength Rating In July 2021, A.M. Best upgraded the financial strength rating (“FSR”) for Oxford and Christian Fidelity Life Insurance Company to A from A-.   The FSR outlook remains stable.   In addition, A.M. Best upgraded the long-term issuer credit rating (“LTICR”) to “a” from “a-“.   The LTICR outlook has been revised to stable from positive.
v3.21.2
Investments (Table Text Block)
 3 Months Ended
Jun. 30, 2021
Investments Debt Equity Securities [Abstract]  
Available-for-Sale Investments     Amortized Cost   Gross Unrealized Gains   Gross Unrealized Losses More than 12 Months   Gross Unrealized Losses Less than 12 Months   Allowance for Expected Credit Losses   Estimated Market Value     (Unaudited)     (In thousands) U.S. treasury securities and government obligations $ 104,016 $   9,087 $   – $   (818) $   – $   112,285 U.S. government agency mortgage-backed securities   70,219   782   (7)   (762)   –   70,232 Obligations of states and political subdivisions   215,298   18,323   (106)   (969)   –   232,546 Corporate securities   1,998,177   129,442   (1,079)   (18,456)   (1,041)   2,107,043 Mortgage-backed securities   170,569   10,380   (1)   (2)   –   180,946   $ 2,558,279 $   168,014 $   (1,193) $   (21,007) $   (1,041) $   2,703,052   Available-for-sale investments as of March 31, 2021 were as follows:       Amortized   Gross   Gross   Gross   Allowance for Expected Credit Losses   Estimated           (In thousands) U.S. treasury securities and government obligations $ 92,429 $   12,941 $   – $   – $   – $   105,370 U.S. government agency mortgage-backed securities   61,427   911   (1)   (132)   –   62,205 Obligations of states and political subdivisions   230,521   25,249   (59)   (3)   –   255,708 Corporate securities   1,846,507   199,447   (163)   (641)   (1,319)   2,043,831 Mortgage-backed securities   174,728   11,706   (1)   (8)   –   186,425  $ 2,405,612 $  250,254 $ ( 224 )$ ( 784 )$ ( 1,319 )$  2,653,539
Adjusted Cost and Estimated Market Value of Available-for-sale Investments     June 30, 2021   March 31, 2021     Amortized   Estimated   Amortized   Estimated     (Unaudited)         (In thousands) Due in one year or less $ 57,753 $ 58,374 $ 90,142 $ 91,190 Due after one year through five years   590,448   627,370   562,442   601,818 Due after five years through ten years   641,992   694,439   672,733   754,536 Due after ten years   1,097,517   1,141,923   905,567   1,019,570     2,387,710   2,522,106   2,230,884   2,467,114                   Mortgage-backed securities   170,569   180,946   174,728   186,425 Redeemable preferred stocks   –   –   –   –  $ 2,558,279 $ 2,703,052 $ 2,405,612 $ 2,653,539
Available for sale equity investments     June 30, 2021   March 31, 2021     Cost   Market   Cost   Market     (Unaudited)             (In thousands)                   Common stocks $ 9,775 $ 22,673 $ 9,775 $ 20,440 Non-redeemable preferred stocks   28,034   29,408   20,034   21,677  $ 37,809 $ 52,081 $ 29,809 $ 42,117
v3.21.2
Borrowings (Table Text Block)
 3 Months Ended
Jun. 30, 2021
Debt Instruments [Abstract]  
Long-Term Debt                       June 30,   March 31,   2022 Rates (a)     Maturities   2021   2021                 (Unaudited)                     (In thousands) Real estate loan (amortizing term)       1.60 %       2023 $ 55,257 $   82,913 Senior mortgages 2.80 % - 6.62 %   2021 - 2038   2,122,167   2,125,324 Real estate loans (revolving credit) (a) 1.47 % - 3.14 %   2023 - 2025   535,000   535,000 Fleet loans (amortizing term) 1.61 % - 4.66 %   2022 - 2028   162,528   176,295 Fleet loans (revolving credit) 1.24 %   1.34 %   2023 - 2025   553,000   535,000 Finance leases (rental equipment) 1.92 % - 5.04 %   2021 - 2026   468,484   513,623 Finance liability (rental equipment) 1.60 % - 4.22 %   2024   2029   718,585   644,375 Other obligations 1.75 % - 8.00 %   2021 - 2049   87,106   86,085 Notes, loans and finance leases payable                   4,702,127   4,698,615 Less: Debt issuance costs                     (28,744)   (29,708) Total notes, loans and finance leases payable, net         $ 4,673,383 $   4,668,907                             (a) Certain loans have interest rate swaps fixing the rate between 3.03% and 3.14% based on current margins.  
Annual Maturities of Notes, Loans and Leases Payable     Years Ending June 30,     2022   2023   2024   2025   2026   Thereafter     (Unaudited)     (In thousands) Notes, loans and finance leases payable, secured$ 510,380 $ 673,861 $ 1,152,549 $ 561,740 $ 410,089 $ 1,393,508
Components of interest expense     Quarter Ended June 30,     2021   2020     (Unaudited)     (In thousands) Interest expense $ 38,935 $ 41,911 Capitalized interest   (2,030)   (4,434) Amortization of transaction costs   1,286   1,297 Interest expense resulting from cash flow hedges   987   747 Total interest expense$ 39,178 $ 39,521
Interest rates and company borrowings     Revolving Credit Activity       Quarter Ended June 30,       2021   2020       (Unaudited)       (In thousands, except interest rates)   Weighted average interest rate during the quarter   1.39 % 2.02 % Interest rate at the end of the quarter   1.38 % 1.67 % Maximum amount outstanding during the quarter $ 1,088,000 $ 1,175,000   Average amount outstanding during the quarter $ 1,073,055 $ 1,161,385   Facility fees$ 71 $ 4  
v3.21.2
Derivatives (Table Text Block)
 3 Months Ended
Jun. 30, 2021
Derivative Instrument Detail [Abstract]  
Derivative Fair Values Located in Accounts Payable and Accrued Expenses in the Balance Sheet     June 30, 2021   March 31, 2021     (Unaudited)         (In thousands) Interest rate contracts designated as hedging instruments:         Assets $ – $ – Liabilities   4,222   5,141 Notional amount  235,000   235,000
Effect of Interest Rate Contracts on the Statement of Operations     The Effect of Interest Rate Contracts on the Statements of Operations for the Quarters Ended         June 30, 2021   June 30, 2020     (Unaudited)     (In thousands) (Gain) loss recognized in AOCI on interest rate contracts $ (919) $ (42) (Gain) loss reclassified from AOCI into income$ 987 $ 747
v3.21.2
Accumulated Other Comprehensive Income (loss) (Table Text Block)
 3 Months Ended
Jun. 30, 2021
Table Text Block Supplement [Abstract]  
Summary of accumulated other comprehensive income (loss) components, net of tax     Foreign Currency Translation   Unrealized Net Gain on Investments   Fair Market Value of Cash Flow Hedges   Postretirement Benefit Obligation Net Loss   Accumulated Other Comprehensive Income (Loss)     (Unaudited)     (In thousands) Balance at March 31, 2021 $ (52,929) $   167,653 $   (3,879) $   (3,988) $   106,857 Foreign currency translation   (3,392)   –   –   –   (3,392) Unrealized net losses on investments   –   (73,027)   –   –   (73,027) Change in fair value of cash flow hedges   –   –   (51)   –   (51) Amounts reclassified into earnings on hedging activities   –   –   745   –   745 Other comprehensive income (loss)   (3,392)   (73,027)   694   –   (75,725) Balance at June 30, 2021$( 56,321 )$  94,626 $ ( 3,185 )$ ( 3,988 )$  31,132
v3.21.2
Stockholders' Equity (Table Text Block)
 3 Months Ended
Jun. 30, 2021
Stockholders' Equity [Abstract]  
Common Stock Dividends Common Stock Dividends Declared Date   Per Share Amount   Record Date   Dividend Date               June 9, 2021$ 0.50  June 24, 2021 July 8, 2021
v3.21.2
Leases (Table Text Block)
 3 Months Ended
Jun. 30, 2021
Leases [Abstract]  
Supplemental Balance Sheet Information Related to Leases     As of June 30, 2021     Finance   Operating   Total     (Unaudited)     (In thousands) Buildings and improvements $ – $ 135,174 $ 135,174 Furniture and equipment   22,176   –   22,176 Rental trailers and other rental equipment   197,981   –   197,981 Rental trucks   1,395,144   –   1,395,144 Right-of-use assets, gross   1,615,301   135,174   1,750,475 Less: Accumulated depreciation   (800,426)   (45,805)   (846,231) Right-of-use assets, net $ 814,875 $ 89,369 $ 904,244       As of March 31, 2021     Finance   Operating   Total     (In thousands) Buildings and improvements $ – $ 132,901 $ 132,901 Furniture and equipment   22,316   –   22,316 Rental trailers and other rental equipment   203,594   –   203,594 Rental trucks   1,494,098   –   1,494,098 Right-of-use assets, gross   1,720,008   132,901   1,852,909 Less: Accumulated depreciation   (842,970)   (40,396)   (883,366) Right-of-use assets, net$ 877,038 $ 92,505 $ 969,543
Summary of Weighted-average remaining lease terms and Discount rates     Finance leases       June 30,   March 31,       2021   2021               Weighted average remaining lease term (years)   3   3   Weighted average discount rate   3.6 % 3.6 %       Operating leases       June 30,   March 31,       2021   2021               Weighted average remaining lease term (years)   14.8   14.7   Weighted average discount rate  4.6 % 4.6 %
Components of Lease Expense     Three Months Ended     June 30, 2021   June 30, 2020     (Unaudited)     (In thousands)           Operating lease costs $ 8,077 $ 7,137           Finance lease cost:         Amortization of right-of-use assets $ 183,277 $ 40,836 Interest on lease liabilities   4,571   6,282 Total finance lease cost$ 187,848 $ 47,118
Maturities of Lease Liabilities     Finance leases   Operating leases     (Unaudited) Years ending June 30,   (In thousands)           2022 $ 168,277 $ 24,926 2023   132,482   22,560 2024   98,586   21,418 2025   68,555   6,414 2026   35,679   3,560 Thereafter   –   61,302 Total lease payments   503,579   140,180 Less: imputed interest   (35,095)   (50,790) Present value of lease liabilities$ 468,484 $ 89,390
v3.21.2
Related Party Transations (Table Text Block)
 3 Months Ended
Jun. 30, 2021
Related Party Revenue [Abstract]  
Related Party Revenue     Quarter Ended June 30,     2021   2020     (Unaudited)     (In thousands) U-Haul management fee revenue from Blackwater $ 7,180 $ 6,148 U-Haul management fee revenue from Mercury   1,269   1,199  $ 8,449 $ 7,347
Related Party costs and expenses     Quarter Ended June 30,     2021   2020     (Unaudited)     (In thousands) U-Haul lease expenses to Blackwater $ 626 $ 657 U-Haul commission expenses to Blackwater   22,880   15,332  $ 23,506 $ 15,989
Related party assets     June 30,   March 31,     2021   2021     (Unaudited)         (In thousands) U-Haul receivable from Blackwater $ 28,840 $ 27,116 U-Haul receivable from Mercury   6,371   9,632 Other (a)   (730)   (1,353)   $ 34,481 $ 35,395 (a)      
v3.21.2
Consolidating Financial Information By Industry Segment (Table Text Block)
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Table Text Block Supplement [Abstract]    
Consolidated Balance Sheet by Industry Segment Consolidating balance sheets by industry segment as of June 30, 2021 are as follows:       Moving & Storage Consolidated   Property & Casualty Insurance (a)   Life Insurance (a)   Eliminations     AMERCO Consolidated     (Unaudited)     (In thousands) Assets:   Cash and cash equivalents $ 1,455,973 $ 3,246 $ 60,762 $ –   $ 1,519,981 Reinsurance recoverables and trade receivables, net   120,946   67,589   44,521   –     233,056 Inventories and parts, net   117,978   –   –   –     117,978 Prepaid expenses   306,565   –   –   –     306,565 Investments, fixed maturities and marketable equities   –   290,571   2,464,562   –     2,755,133 Investments, other   20,733   94,028   411,132   –     525,893 Deferred policy acquisition costs, net   –   –   101,169   –     101,169 Other assets   43,439   829   2,642   –     46,910 Right of use assets - financing, net   814,875   –   –   –     814,875 Right of use assets - operating, net   89,034   184   151   –     89,369 Related party assets   53,783   6,557   13,797   (39,656) (c)   34,481     3,023,326   463,004   3,098,736   (39,656)     6,545,410                         Investment in subsidiaries   677,909   –   –   (677,909) (b)   –                         Property, plant and equipment, at cost:                       Land   1,110,300   –   –   –     1,110,300 Buildings and improvements   5,284,224   –   –   –     5,284,224 Furniture and equipment   796,077   –   –   –     796,077 Rental trailers and other rental equipment   495,012   –   –   –     495,012 Rental trucks   4,119,655   –   –   –     4,119,655     11,805,268   –   –   –     11,805,268 Less:   Accumulated depreciation   (3,235,796)   –   –   –     (3,235,796) Total property, plant and equipment, net   8,569,472   –   –   –     8,569,472 Total assets $ 12,270,707 $ 463,004 $ 3,098,736 $ (717,565)   $ 15,114,882                         (a) Balances as of March 31, 2021                       (b) Eliminate investment in subsidiaries                       (c) Eliminate intercompany receivables and payables                         Consolidating balance sheets by industry segment as of June 30, 2021, continued       Moving & Storage Consolidated   Property & Casualty Insurance (a)   Life Insurance (a)   Eliminations     AMERCO Consolidated     (Unaudited)     (In thousands) Liabilities:                       Accounts payable and accrued expenses $ 679,461 $ 2,260 $ 15,076 $ –   $ 696,797 Notes, loans and finance leases payable, net   4,662,325   –   11,058   –     4,673,383 Operating lease liability   89,042   188   160   –     89,390 Policy benefits and losses, claims and loss expenses payable   433,394   179,294   394,456   –     1,007,144 Liabilities from investment contracts   –   –   2,226,560   –     2,226,560 Other policyholders' funds and liabilities   –   3,237   7,752   –     10,989 Deferred income   54,738   –   –   –     54,738 Deferred income taxes, net   1,217,716   11,667   14,970   –     1,244,353 Related party liabilities   26,836   3,812   13,341   (43,989) (c)   – Total liabilities   7,163,512   200,458   2,683,373   (43,989)     10,003,354                         Stockholders' equity:                       Series preferred stock:                       Series A preferred stock   –   –   –   –     – Series B preferred stock   –   –   –   –     – Series A common stock   –   –   –   –     – Common stock   10,497   3,301   2,500   (5,801) (b)   10,497 Additional paid-in capital   454,029   91,120   26,271   (117,601) (b)   453,819 Accumulated other comprehensive income (loss)   26,799   15,148   75,145   (85,960) (b)   31,132 Retained earnings   5,293,520   152,977   311,447   (464,214) (b)   5,293,730 Cost of common stock in treasury, net   (525,653)   –   –   –     (525,653) Cost of preferred stock in treasury, net   (151,997)   –   –   –     (151,997) Total stockholders' equity   5,107,195   262,546   415,363   (673,576)     5,111,528 Total liabilities and stockholders' equity $ 12,270,707 $ 463,004 $ 3,098,736 $ (717,565)   $ 15,114,882                         (a) Balances as of March 31, 2021                       (b) Eliminate investment in subsidiaries                       (c) Eliminate intercompany receivables and payables                           Consolidating balance sheets by industry segment as of March 31, 2021 are as follows:       Moving & Storage Consolidated   Property & Casualty Insurance (a)   Life Insurance (a)   Eliminations     AMERCO Consolidated       Assets:   (In thousands) Cash and cash equivalents $   1,010,275 $   5,658 $   178,079 $   –   $   1,194,012 Reinsurance recoverables and trade receivables, net   118,741   67,069   38,616   –     224,426 Inventories and parts, net   105,577   –   –   –     105,577 Prepaid expenses   469,144   –   –   –     469,144 Investments, fixed maturities and marketable equities   –   295,753   2,399,903   –     2,695,656 Investments, other   20,733   90,412   378,614   –     489,759 Deferred policy acquisition costs, net   –   –   89,749   –     89,749 Other assets   44,763   436   2,531   –     47,730 Right of use assets - financing, net   877,038   –   –   –     877,038 Right of use assets - operating, net   92,245   92   168   –     92,505 Related party assets   54,042   6,854   13,850   (39,351) (c)   35,395     2,792,558   466,274   3,101,510   (39,351)     6,320,991                         Investment in subsidiaries   741,860   –   –   (741,860) (b)   –                         Property, plant and equipment, at cost:                       Land   1,075,813   –   –   –     1,075,813 Buildings and improvements   5,163,705   –   –   –     5,163,705 Furniture and equipment   786,505   –   –   –     786,505 Rental trailers and other rental equipment   477,921   –   –   –     477,921 Rental trucks   3,909,724   –   –   –     3,909,724     11,413,668   –   –   –     11,413,668 Less:   Accumulated depreciation   (3,083,053)   –   –   –     (3,083,053) Total property, plant and equipment, net   8,330,615   –   –   –     8,330,615 Total assets $   11,865,033 $   466,274 $   3,101,510 $   (781,211)   $   14,651,606                         (a) Balances as of December 31, 2020                       (b) Eliminate investment in subsidiaries                       (c) Eliminate intercompany receivables and payables                         Consolidating balance sheets by industry segment as of March 31, 2021, continued       Moving & Storage   Property & Casualty Insurance (a)   Life   Eliminations     AMERCO                             (In thousands) Liabilities:                       Accounts payable and accrued expenses $ 636,257 $ 2,029 $ 7,289 $ –   $ 645,575 Notes, loans and finance leases payable, net   4,657,720   –   11,187   –     4,668,907 Operating lease liability   92,236   96   178   –     92,510 Policy benefits and losses, claims and loss expenses payable   427,073   178,942   391,686   –     997,701 Liabilities from investment contracts   –   –   2,161,530   –     2,161,530 Other policyholders' funds and liabilities   –   3,698   8,722   –     12,420 Deferred income   42,592   –   –   –     42,592 Deferred income taxes, net   1,136,149   13,046   29,294   –     1,178,489 Related party liabilities   25,413   5,821   12,406   (43,640) (c)   – Total liabilities   7,017,440   203,632   2,622,292   (43,640)     9,799,724                         Stockholders' equity:                       Series preferred stock:                       Series A preferred stock   –   –   –   –     – Series B preferred stock   –   –   –   –     – Series A common stock   –   –   –   –     – Common stock   10,497   3,301   2,500   (5,801) (b)   10,497 Additional paid-in capital   454,029   91,120   26,271   (117,601) (b)   453,819 Accumulated other comprehensive income (loss)   102,568   22,546   140,817   (159,074) (b)   106,857 Retained earnings   4,958,149   145,675   309,630   (455,095) (b)   4,958,359 Cost of common stock in treasury, net   (525,653)   –   –   –     (525,653) Cost of preferred stock in treasury, net   (151,997)   –   –   –     (151,997) Total stockholders' equity   4,847,593   262,642   479,218   (737,571)     4,851,882 Total liabilities and stockholders' equity $ 11,865,033 $ 466,274 $ 3,101,510 $ (781,211)   $ 14,651,606                         (a) Balances as of December 31, 2020                       (b) Eliminate investment in subsidiaries                       (c) Eliminate intercompany receivables and payables             
Consolidated Statement of Operations by Industry Segment Consolidating statement of operations by industry segment for the quarter ended June 30, 2021 are as follows:       Moving & Storage   Property & Casualty Insurance (a)   Life   Eliminations     AMERCO     (Unaudited)     (In thousands) Revenues:                       Self-moving equipment rentals $ 1,036,213 $ – $ – $ (836) (c) $ 1,035,377 Self-storage revenues   137,393   –   –   –     137,393 Self-moving and self-storage products and service sales   104,885   –   –   –     104,885 Property management fees   8,449   –   –   –     8,449 Life insurance premiums   –   –   28,705   –     28,705 Property and casualty insurance premiums   –   17,443   –   (574) (c)   16,869 Net investment and interest income   680   6,013   29,324   (1,018) (b)   34,999 Other revenue   105,634   –   630   (85) (b)   106,179 Total revenues   1,393,254   23,456   58,659   (2,513)     1,472,856                         Costs and expenses:                       Operating expenses   601,831   8,813   5,375   (1,490) (b,c)   614,529 Commission expenses   113,149   –   –   –     113,149 Cost of sales   69,915   –   –   –     69,915 Benefits and losses   –   5,227   42,071   –     47,298 Amortization of deferred policy acquisition costs   –   –   8,823   –     8,823 Lease expense   8,077   184   24   (638) (b)   7,647 Depreciation, net of gains on disposals   121,717   –   –   –     121,717 Net gains on disposal of real estate   (4,430)   –   –   –     (4,430) Total costs and expenses   910,259   14,224   56,293   (2,128)     978,648                         Earnings from operations before equity in earnings of subsidiaries   482,995   9,232   2,366   (385)     494,208                         Equity in earnings of subsidiaries   9,119   –   –   (9,119) (d)   –                         Earnings from operations   492,114   9,232   2,366   (9,504)     494,208 Other components of net periodic benefit costs   (280)   –   –   –     (280) Interest expense   (39,443)   –   (120)   385 (b)   (39,178) Pretax earnings   452,391   9,232   2,246   (9,119)     454,750 Income tax expense   (107,216)   (1,930)   (429)   –     (109,575) Earnings available to common stockholders $ 345,175 $ 7,302 $ 1,817 $ (9,119)   $ 345,175                         (a) Balances for the quarter ended March 31, 2021                       (b) Eliminate intercompany lease / interest income                       (c) Eliminate intercompany premiums                       (d) Eliminate equity in earnings of subsidiaries             Consolidating statements of operations by industry for the quarter ended June 30, 2020 are as follows:       Moving & Storage   Property & Casualty Insurance (a)   Life   Eliminations     AMERCO     (Unaudited)     (In thousands) Revenues:                       Self-moving equipment rentals $ 654,913 $ – $ – $ (628) (c) $ 654,285 Self-storage revenues   108,955   –   –   –     108,955 Self-moving and self-storage products and service sales   91,350   –   –   –     91,350 Property management fees   7,347   –   –   –     7,347 Life insurance premiums   –   –   30,908   –     30,908 Property and casualty insurance premiums   –   14,507   –   (773) (c)   13,734 Net investment and interest income   662   (873)   18,006   (813) (b)   16,982 Other revenue   63,073   –   739   (136) (b)   63,676 Total revenues   926,300   13,634   49,653   (2,350)     987,237                         Costs and expenses:                       Operating expenses   480,081   8,825   5,288   (1,532) (b,c)   492,662 Commission expenses   69,175   –   –   –     69,175 Cost of sales   52,831   –   –   –     52,831 Benefits and losses   –   4,030   35,547   –     39,577 Amortization of deferred policy acquisition costs   –   –   6,888   –     6,888 Lease expense   7,137   1   10   (545) (b)   6,603 Depreciation, net of gains on disposals   165,671   –   –   –     165,671 Net gains on disposal of real estate   (256)   –   –   –     (256) Total costs and expenses   774,639   12,856   47,733   (2,077)     833,151                         Earnings from operations before equity in earnings of subsidiaries   151,661   778   1,920   (273)     154,086                         Equity in earnings of subsidiaries   2,395   –   –   (2,395) (d)   –                         Earnings from operations   154,056   778   1,920   (2,668)     154,086 Other components of net periodic benefit costs   (247)   –   –   –     (247) Interest expense   (39,794)   –   –   273 (b)   (39,521) Pretax earnings   114,015   778   1,920   (2,395)     114,318 Income tax expense   (26,289)   (162)   (141)   –     (26,592) Earnings available to common stockholders $ 87,726 $ 616 $ 1,779 $ (2,395)   $ 87,726                         (a) Balances for the quarter ended March 31, 2020                       (b) Eliminate intercompany lease / interest income                       (c) Eliminate intercompany premiums                       (d) Eliminate equity in earnings of subsidiaries           
Consolidated Cash Flow Statement by Industry Segment Consolidating cash flow statements by industry segment for the quarter ended June 30, 2021 are as follows:       Moving & Storage Consolidated   Property & Casualty Insurance (a)   Life Insurance (a)   Elimination     AMERCO Consolidated     (Unaudited) Cash flows from operating activities:   (In thousands) Net earnings $   345,175 $   7,302 $   1,817 $   (9,119)   $   345,175 Earnings from consolidated entities   (9,119)   –   –   9,119     – Adjustments to reconcile net earnings to the cash provided by operations:                       Depreciation   172,040   –   –   –     172,040 Amortization of deferred policy acquisition costs   –   –   8,823   –     8,823 Amortization of premiums and accretion of discounts related to investments, net   –   413   3,948   –     4,361 Amortization of debt issuance costs   1,332   –   –   –     1,332 Interest credited to policyholders   –   –   15,583   –     15,583 Change in allowance for losses on trade receivables   (478)   (5)   (1)   –     (484) Change in allowance for inventories and parts reserve   3,403   –   –   –     3,403 Net gains on disposal of personal property   (50,323)   –   –   –     (50,323) Net gains on disposal of real estate   (4,430)   –   –   –     (4,430) Net gains on sales of investments   –   (37)   (2,432)   –     (2,469) Net gains on equity investments   –   (2,231)   –   –     (2,231) Deferred income taxes   81,341   604   429   –     82,374 Net change in other operating assets and liabilities:                       Reinsurance recoverables and trade receivables   (1,658)   (520)   (5,904)   –     (8,082) Inventories and parts   (15,765)   –   –   –     (15,765) Prepaid expenses   162,706   –   –   –     162,706 Capitalization of deferred policy acquisition costs   –   –   (8,990)   –     (8,990) Other assets   (436)   (323)   (94)   –     (853) Related party assets   302   260   –   –     562 Accounts payable and accrued expenses   60,902   225   10,472   –     71,599 Policy benefits and losses, claims and loss expenses payable   5,942   352   2,770   –     9,064 Other policyholders' funds and liabilities   –   (461)   (969)   –     (1,430) Deferred income   12,125   –   (262)   –     11,863 Related party liabilities   1,422   (1,972)   935   –     385 Net cash provided by operating activities   764,481   3,607   26,125   –     794,213                         Cash flows from investing activities:                       Escrow deposits   1,887   –   –   –     1,887 Purchases of:                       Property, plant and equipment   (508,411)   –   –   –     (508,411) Short term investments   –   (11,680)   (130)   –     (11,810) Fixed maturities investments   –   (7,466)   (274,041)   –     (281,507) Preferred stock   –   –   (8,000)   –     (8,000) Real estate   –   –   (67)   –     (67) Mortgage loans   –   (4,850)   (37,688)   –     (42,538) Proceeds from sales and paydowns of:                       Property, plant and equipment   182,146   –   –   –     182,146 Short term investments   –   12,558   –   –     12,558 Fixed maturities investments   –   5,136   121,820   –     126,956 Mortgage loans   –   283   5,345   –     5,628 Net cash used by investing activities   (324,378)   (6,019)   (192,761)   –     (523,158)     (page 1 of 2) (a) Balance for the period ended March 31, 2021                         Consolidating cash flow statements by industry segment for the quarter ended June 30, 2021, continued       Moving & Storage   Property &   Life   Elimination     AMERCO     (Unaudited) Cash flows from financing activities:   (In thousands) Borrowings from credit facilities   161,854   –   –   –     161,854 Principal repayments on credit facilities   (109,206)   –   (128)   –     (109,334) Payments of debt issuance costs   (352)   –   –   –     (352) Finance lease payments   (45,170)   –   –   –     (45,170) Investment contract deposits   –   –   113,779   –     113,779 Investment contract withdrawals   –   –   (64,332)   –     (64,332) Net cash provided by financing activities   7,126   –   49,319   –     56,445                         Effects of exchange rate on cash   (1,531)   –   –   –     (1,531)                         Increase (decrease) in cash and cash equivalents   445,698   (2,412)   (117,317)   –     325,969 Cash and cash equivalents at beginning of period   1,010,275   5,658   178,079   –     1,194,012 Cash and cash equivalents at end of period $   1,455,973 $   3,246 $   60,762 $   –   $   1,519,981     (page 2 of 2) (a) Balance for the period ended March 31, 2021            Consolidating cash flow statements by industry segment for the quarter ended June 30, 2020 are as follows:       Moving & Storage Consolidated   Property & Casualty Insurance (a)   Life Insurance (a)   Elimination     AMERCO Consolidated     (Unaudited) Cash flows from operating activities:   (In thousands) Net earnings $   87,726 $   616 $   1,779 $   (2,395)   $   87,726 Earnings from consolidated entities   (2,395)   –   –   2,395     – Adjustments to reconcile net earnings to cash provided by operations:                       Depreciation   166,740   –   –   –     166,740 Amortization of deferred policy acquisition costs   –   –   6,888   –     6,888 Amortization of premiums and accretion of discounts related to investments, net   –   395   3,155   –     3,550 Amortization of debt issuance costs   1,297   –   –   –     1,297 Interest credited to policyholders   –   –   7,667   –     7,667 Change in allowance for losses on trade receivables   60   –   –   –     60 Change in allowance for inventories and parts reserve   (99)   –   –   –     (99) Net gains on disposal of personal property   (1,069)   –   –   –     (1,069) Net gains on disposal of real estate   (256)   –   –   –     (256) Net gains (losses) on sales of investments   –   (13)   2,027   –     2,014 Net losses on equity investments   –   3,989   –   –     3,989 Deferred income taxes   28,939   1,070   (2,475)   –     27,534 Net change in other operating assets and liabilities:                       Reinsurance recoverables and trade receivables   (24,749)   5,725   (4,570)   –     (23,594) Inventories and parts   350   –   –   –     350 Prepaid expenses   (22,831)   –   –   –     (22,831) Capitalization of deferred policy acquisition costs   –   –   (7,308)   –     (7,308) Other assets   758   (340)   (344)   –     74 Related party assets   7,302   27   –   –     7,329 Accounts payable and accrued expenses   56,522   (246)   1,997   –     58,273 Policy benefits and losses, claims and loss expenses payable   294   (2,769)   3,003   –     528 Other policyholders' funds and liabilities   –   (4,089)   663   –     (3,426) Deferred income   11,238   –   3,660   –     14,898 Related party liabilities   1,867   (834)   (1,282)   –     (249) Net cash provided by operating activities   311,694   3,531   14,860   –     330,085                         Cash flows from investing activities:                       Escrow deposits   1,401   –   –   –     1,401 Purchases of:                       Property, plant and equipment   (249,740)   –   –   –     (249,740) Short term investments   –   (8,989)   (636)   –     (9,625) Fixed maturities investments   –   (1,864)   (92,329)   –     (94,193) Real estate   –   –   (192)   –     (192) Mortgage loans   –   –   (33,300)   –     (33,300) Proceeds from sales and paydowns of:                       Property, plant and equipment   76,412   –   –   –     76,412 Short term investments   –   1,980   468   –     2,448 Fixed maturities investments   –   4,402   105,763   –     110,165 Mortgage loans   –   265   1,167   –     1,432 Net cash used by investing activities   (171,927)   (4,206)   (19,059)   –     (195,192)     (page 1 of 2) (a) Balance for the period ended March 31, 2020                         Consolidating cash flow statements by industry segment for the quarter ended June 30, 2020, continued       Moving & Storage   Property &   Life   Elimination     AMERCO     (Unaudited) Cash flows from financing activities:   (In thousands) Borrowings from credit facilities   367,451   –   9,600   –     377,051 Principal repayments on credit facilities   (144,489)   –   (9,600)   –     (154,089) Payment of debt issuance costs   (1,677)   –   –   –     (1,677) Finance lease payments   (68,554)   –   –   –     (68,554) Net contribution from (to) related party   18,599   –   –   –     18,599 Investment contract deposits   –   –   75,366   –     75,366 Investment contract withdrawals   –   –   (51,633)   –     (51,633) Net cash provided by financing activities   171,330   –   23,733   –     195,063                         Effects of exchange rate on cash   766   –   –   –     766                         Increase (decrease) in cash and cash equivalents   311,863   (675)   19,534   –     330,722 Cash and cash equivalents at beginning of period   459,078   4,794   30,480   –     494,352 Cash and cash equivalents at end of period $   770,941 $   4,119 $   50,014 $   –   $   825,074     (page 2 of 2) (a) Balance for the period ended March 31, 2020           
v3.21.2
Industry Segment and Geographic Area Data (Table Text Block)
 3 Months Ended
Jun. 30, 2021
Geographic Areas, Long-Lived Assets [Abstract]  
Industry Segment and Geographic Area Data     United States   Canada   Consolidated     (Unaudited)     (All amounts are in thousands of U.S. $'s) Quarter Ended June 30, 2021             Total revenues $ 1,396,361 $ 76,495 $ 1,472,856 Depreciation and amortization, net of gains on disposal   127,650   (1,540)   126,110 Interest expense   38,128   1,050   39,178 Pretax earnings   437,949   16,801   454,750 Income tax expense   105,302   4,273   109,575 Identifiable assets   14,661,722   453,160   15,114,882               Quarter Ended June 30, 2020             Total revenues $ 942,803 $ 44,434 $ 987,237 Depreciation and amortization, net of gains on disposal   168,526   3,777   172,303 Interest expense   38,654   867   39,521 Pretax earnings   111,949   2,369   114,318 Income tax expense   25,783   809   26,592 Identifiable assets  13,279,882   432,477   13,712,359
v3.21.2
Employee Benefit Plans (Table Text Block)
 3 Months Ended
Jun. 30, 2021
Compensation and Retirement Disclosure [Abstract]  
Components of Net Periodic Post Retirement Benefit Cost     Quarter Ended June 30,     2021   2020     (Unaudited)     (In thousands)           Service cost for benefits earned during the period $ 350 $   317 Other components of net periodic benefit costs:         Interest cost on accumulated postretirement benefit   227   230 Other components   53   17 Total other components of net periodic benefit costs   280   247 Net periodic postretirement benefit cost$ 630 $  564
v3.21.2
Fair Value Measurements (Table Text Block)
 3 Months Ended 12 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]    
Financial Instruments, Carrying and Estimated fair values     Fair Value Hierarchy     Carrying               Total Estimated As of June 30, 2021   Value   Level 1   Level 2   Level 3   Fair Value     (Unaudited) Assets   (In thousands) Reinsurance recoverables and trade receivables, net $ 233,056 $ – $ – $ 233,056 $ 233,056 Mortgage loans, net   428,140   –   –   428,140   428,140 Other investments   97,753   –   –   97,753   97,753 Total $ 758,949 $ – $ – $ 758,949 $ 758,949                                             Liabilities                     Notes, loans and finance leases payable   4,702,127   –   4,702,127   –   4,497,078 Total $ 4,702,127 $ – $ 4,702,127 $ – $ 4,497,078       Fair Value Hierarchy     Carrying               Total Estimated As of March 31, 2021   Value   Level 1   Level 2   Level 3   Fair Value     (In thousands) Assets                     Reinsurance recoverables and trade receivables, net $ 224,426 $ – $ – $ 224,426 $ 224,426 Mortgage loans, net   391,230   –   –   391,230   391,230 Other investments   98,529   –   –   98,529   98,529 Total $ 714,185 $ – $ – $ 714,185 $ 714,185                                             Liabilities                     Notes, loans and finance leases payable   4,698,615   –   4,698,615   –   4,449,691 Total$ 4,698,615 $ – $ 4,698,615 $ – $ 4,449,691  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis As of June 30, 2021   Total   Level 1   Level 2   Level 3     (Unaudited) Assets   (In thousands) Short-term investments $ 1,311,376 $ 1,311,376 $ – $ – Fixed maturities - available for sale   2,703,053   7,185   2,695,712   156 Preferred stock   29,408   29,408   –   – Common stock   22,672   22,672   –   – Derivatives   6,789   6,789   –   – Total $ 4,073,298 $ 1,377,430 $ 2,695,712 $ 156                                     Liabilities                 Derivatives   4,222   –   4,222   – Total$ 4,222 $ – $ 4,222 $ – As of March 31, 2021   Total   Level 1   Level 2   Level 3     (In thousands) Assets                 Short-term investments $ 839,250 $ 839,250 $ – $ – Fixed maturities - available for sale   2,653,539   6,967   2,646,415   157 Preferred stock   21,677   21,677   –   – Common stock   20,440   20,440   –   – Derivatives   6,601   6,601   –   – Total $ 3,541,507 $ 894,935 $ 2,646,415 $ 157                                     Liabilities                 Derivatives   5,141   –   5,141   – Total$ 5,141 $ – $ 5,141 $ –
v3.21.2
Revenue Recognition (Table Text Block)
 3 Months Ended
Jun. 30, 2021
Revenue From Contract With Customer [Abstract]  
Next five years and thereafter revenue     Years Ending June 30,     2022   2023   2024   2025   2026   Thereafter     (Unaudited)     (In thousands)                           Self-moving equipment rentals $ 6,560 $ – $ – $ – $ – $ – Property lease revenues   16,072   12,621   8,866   6,856   5,398   53,835 Total$ 22,632 $ 12,621 $ 8,866 $ 6,856 $ 5,398 $ 53,835
Disaggregation Of Revenue     Quarter Ended June 30,     2021   2020     (Unaudited)     (In thousands)           Revenues recognized over time: $   79,815 $   44,938 Revenues recognized at a point in time:   120,718   104,848 Total revenues recognized under ASC 606   200,533   149,786           Revenues recognized under ASC 842 or 840   1,191,010   774,694 Revenues recognized under ASC 944   46,314   45,775 Revenues recognized under ASC 320   34,999   16,982 Total revenues$  1,472,856 $  987,237
v3.21.2
Allowance For Credit Losses (Table Text Block)
 3 Months Ended
Jun. 30, 2021
Allowance For Credit Loss [Abstract]  
Accounts Receivable Allowance For Credit Loss [Table Text Block]     Allowance for Credit Losses     Trade Receivables   Investments, Fixed Maturities   Investments, other   Total     (Unaudited)     (in thousands) Balance as of March 31, 2021 $ 2,835 $ 1,320 $ 501 $ 4,656 Allowance change   (291)   (279)   4   (566) Write-offs against allowance   –   –   –   – Recoveries   –   –   –   – Balance as of June 30, 2021$ 2,544 $ 1,041 $ 505 $ 4,090
v3.21.2
Basis of Presentation (Narratives) (Details)
 3 Months Ended
Jun. 30, 2021
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]  
Number of reportable segments 3
v3.21.2
Investments (Narratives) (Details) - USD ($)
$ in Millions
 3 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Insurance Regulatory Authorites:    
Assets held by insurance regulators $ 26.8 $ 27.7
Available for sale securities:    
Fair value of sold available for sale securites 124.7  
Available-for-sale securities, gross realized gains 2.1  
Available-for-sale securities, gross realized losses $ 0.6  
v3.21.2
Investments (Available For Sale Investments) (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Mar. 31, 2021
Available-for-sale Securities [Abstract]    
Amortized cost $ 2,558,279 $ 2,405,612
Gross Unrealized Gains 168,014 250,254
Gross unrealized losses more than 12 months (1,193) (224)
Gross unrealized losses less than 12 months (21,007) (784)
Allowance for Expected Credit Losses (1,041) (1,319)
Estimated market value 2,703,052 2,653,539
U.S. treasury securities and government obligations [Member]    
Available-for-sale Securities [Abstract]    
Amortized cost 104,016 92,429
Gross Unrealized Gains 9,087 12,941
Gross unrealized losses more than 12 months 0 0
Gross unrealized losses less than 12 months (818) 0
Allowance for Expected Credit Losses 0 0
Estimated market value 112,285 105,370
U.S. government agency mortgage-backed securities [Member]    
Available-for-sale Securities [Abstract]    
Amortized cost 70,219 61,427
Gross Unrealized Gains 782 911
Gross unrealized losses more than 12 months (7) (1)
Gross unrealized losses less than 12 months (762) (132)
Allowance for Expected Credit Losses 0 0
Estimated market value 70,232 62,205
Obligations of states and political subdivisions [Member]    
Available-for-sale Securities [Abstract]    
Amortized cost 215,298 230,521
Gross Unrealized Gains 18,323 25,249
Gross unrealized losses more than 12 months (106) (59)
Gross unrealized losses less than 12 months (969) (3)
Allowance for Expected Credit Losses 0 0
Estimated market value 232,546 255,708
Corporate securities [Member]    
Available-for-sale Securities [Abstract]    
Amortized cost 1,998,177 1,846,507
Gross Unrealized Gains 129,442 199,447
Gross unrealized losses more than 12 months (1,079) (163)
Gross unrealized losses less than 12 months (18,456) (641)
Allowance for Expected Credit Losses (1,041) (1,319)
Estimated market value 2,107,043 2,043,831
Mortgage-backed securities [Member]    
Available-for-sale Securities [Abstract]    
Amortized cost 170,569 174,728
Gross Unrealized Gains 10,380 11,706
Gross unrealized losses more than 12 months (1) (1)
Gross unrealized losses less than 12 months (2) (8)
Allowance for Expected Credit Losses 0 0
Estimated market value $ 180,946 $ 186,425
v3.21.2
Investments (Adjusted cost and estimated market value of available-for-sale investments) (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Mar. 31, 2021
Available-for-sale securities, amortized cost:    
Amortized cost $ 2,558,279 $ 2,405,612
Available-for-sale securities, fair value:    
Estimated market value 2,703,052 2,653,539
US Treasury Securities [Member]    
Available-for-sale securities, amortized cost:    
Due in one year or less 57,753 90,142
Due after one year through five years 590,448 562,442
Due after five years through ten years 641,992 672,733
Due after ten years 1,097,517 905,567
Amortized cost 2,387,710 2,230,884
Available-for-sale securities, fair value:    
Due in one year or less 58,374 91,190
Due after one year through five years 627,370 601,818
Due after five years through ten years 694,439 754,536
Due after ten years 1,141,923 1,019,570
Estimated market value 2,522,106 2,467,114
Mortgage-backed securities [Member]    
Available-for-sale securities, amortized cost:    
Amortized cost 170,569 174,728
Available-for-sale securities, fair value:    
Estimated market value 180,946 186,425
Redeemable preferred stocks [Member]    
Available-for-sale securities, amortized cost:    
Amortized cost 0 0
Available-for-sale securities, fair value:    
Estimated market value $ 0 $ 0
v3.21.2
Investments (Available for sale equity investments) (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Jun. 30, 2020
Marketable Securities [Abstract]    
Amortized cost, equity investments $ 37,809 $ 29,809
Estimated market value, equity investments 52,081 42,117
Common stocks [Member]    
Marketable Securities [Abstract]    
Amortized cost, equity investments 9,775 9,775
Estimated market value, equity investments 22,673 20,440
Non-redeemable preferred stocks [Member]    
Marketable Securities [Abstract]    
Amortized cost, equity investments 28,034 20,034
Estimated market value, equity investments $ 29,408 $ 21,677
v3.21.2
Borrowings (Narratives) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Mar. 31, 2021
Debt instruments, face, payment, and remaining balance amount:      
Notes, loans and leases payable $ 4,673,383   $ 4,668,907
Debt instruments, issuance and maturity dates:      
Remaining Lease Term Finance Lease Weighted Average 14.8   14.7
Interest paid related to derivative contracts [Abstract]      
Interest paid in cash $ 36,100 $ 39,400  
Real estate loan [Member]      
Debt instruments, issuance and maturity dates:      
Debt instrument, maturity year 2023    
Capital Lease Obligations [Member] | AMERCO [Member]      
Debt instruments, face, payment, and remaining balance amount:      
Capitalized assets, net book value $ 804,100   $ 865,600
Lease Cost [Abstract]      
Sale Leaseback Transaction Lease Terms (7) year terms    
Capital Lease Obligations [Member] | AMERCO [Member] | Minimum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 1.92%    
Capital Lease Obligations [Member] | AMERCO [Member] | Maximum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 5.04%    
Finance Lease [Member] | AMERCO [Member]      
Lease Cost [Abstract]      
Sale Leaseback Transaction Lease Terms (7) years    
Finance Lease [Member] | AMERCO [Member] | Minimum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 1.60%    
Finance Lease [Member] | AMERCO [Member] | Maximum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 4.22%    
Amerco Real Estate Subsidiaries and Uhaul Company of Florida [Member] | Real estate loan [Member]      
Debt instruments, interest rate, effective percentage:      
LIBOR 0.10%    
Applicable margin interest rate 1.50%    
Sum of LIBOR and margin, maximum rate 1.60%    
Amerco Real Estate Company [Member] | Rental Truck (amortizing loans) First Loan [Member] | AMERCO [Member] | Minimum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 1.61%    
Amerco Real Estate Company [Member] | Rental Truck (amortizing loans) First Loan [Member] | AMERCO [Member] | Maximum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 4.66%    
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Senior Mortgages [Member]      
Debt instruments, interest rate, effective percentage:      
Debt Weighted Average Interest Rate 4.27%    
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Senior Mortgages [Member] | Minimum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 2.80%    
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Senior Mortgages [Member] | Maximum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 6.62%    
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Working capital loans two [Member] | AMERCO [Member]      
Debt instruments, face, payment, and remaining balance amount:      
Line of credit, current borrowing capacity $ 385,000    
Line of credit facility, remaining borrowing capacity $ 385,000    
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Working capital loans two [Member] | AMERCO [Member] | Minimum [Member]      
Debt instruments, interest rate, effective percentage:      
LIBOR 0.08%    
Applicable margin interest rate 1.25%    
Sum of LIBOR and margin, maximum rate 1.34%    
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Working capital loans two [Member] | AMERCO [Member] | Maximum [Member]      
Debt instruments, interest rate, effective percentage:      
LIBOR 0.09%    
Applicable margin interest rate 1.50%    
Sum of LIBOR and margin, maximum rate 1.59%    
Uhaul Intl and Subsidiaries [Member] | Working capital loans two [Member] | AMERCO [Member]      
Debt instruments, interest rate, effective percentage:      
LIBOR 0.09%    
Applicable margin interest rate 1.38%    
Sum of LIBOR and margin, maximum rate 1.47%    
Unused capacity fee 0.30%    
Debt instruments, face, payment, and remaining balance amount:      
Line of credit facility, maximum borrowing capacity $ 300,000    
Line of credit, current borrowing capacity 200,000    
Notes, loans and leases payable $ 150,000    
Uhaul Intl and Subsidiaries [Member] | Rental Truck Revolvers [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 2.36%    
Debt instruments, interest rate, effective percentage:      
LIBOR 0.09%    
Debt instruments, face, payment, and remaining balance amount:      
Line of credit, current borrowing capacity $ 590,000    
New capital lease obligiations, amount 535,000    
Subsidiary holdings of parent company debt $ 100,000    
Uhaul Intl and Subsidiaries [Member] | Rental Truck Revolvers [Member] | Minimum [Member]      
Debt instruments, interest rate, effective percentage:      
Applicable margin interest rate 1.15%    
Sum of LIBOR and margin, maximum rate 1.24%    
Uhaul Intl and Subsidiaries [Member] | Rental Truck Revolvers [Member] | Maximum [Member]      
Debt instruments, interest rate, effective percentage:      
Applicable margin interest rate 1.25%    
Sum of LIBOR and margin, maximum rate 1.34%    
Amerco, Us Bank, National Association, Trustee [Member] | Other Obligations [Member]      
Debt instruments, face, payment, and remaining balance amount:      
Notes, loans and leases payable $ 89,500    
Subsidiary holdings of parent company debt $ 2,400    
Amerco, Us Bank, National Association, Trustee [Member] | Other Obligations [Member] | Minimum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 1.75%    
Debt instruments, issuance and maturity dates:      
Debt instrument, maturity year 2021    
Amerco, Us Bank, National Association, Trustee [Member] | Other Obligations [Member] | Maximum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 8.00%    
Debt instruments, issuance and maturity dates:      
Debt instrument, maturity year 2049    
Life Insurance [Member] | Federal Home Loan Bank [Member]      
Federal Home Loan Bank, Advances, Activity for the year [Abstract]      
Aggregate deposit amount     70,500
Available for sale equity securities, noncurrent     134,300
Available for sale equity securities pledged as collateral     $ 79,300
Life Insurance [Member] | Federal Home Loan Bank [Member] | Minimum [Member]      
Federal Home Loan Bank, Advances, Activity for the year [Abstract]      
Deposit interest rate     0.00%
Life Insurance [Member] | Federal Home Loan Bank [Member] | Maximum [Member]      
Federal Home Loan Bank, Advances, Activity for the year [Abstract]      
Deposit interest rate     1.72%
v3.21.2
Borrowings (Long-term Debt Borrowings) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Debt instrument, maturities:    
Notes, loans and finance/capital leases payable $ 4,702,127 $ 4,698,615
Less: Debt issuance costs (28,744) (29,708)
Total notes, loans and finance/capital leases payable, net $ 4,673,383 $ 4,668,907
Real estate loan (amortizing term) [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year 2023  
Real estate loan (amortizing term) [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 1.60%  
Senior Mortgages [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2021  
Debt instrument, maturity year range, end 2038  
Senior Mortgages [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 2.80%  
Senior Mortgages [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 6.62%  
Real estate loans (revolving credit) [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2023  
Debt instrument, maturity year range, end 2025  
Real estate loans (revolving credit) [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 1.47%  
Real estate loans (revolving credit) [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 3.14%  
Fleet loans (amortizing term) [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2022  
Debt instrument, maturity year range, end 2028  
Fleet loans (amortizing term) [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 1.61%  
Fleet loans (amortizing term) [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 4.66%  
Fleet loans (revolving credit) [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2023  
Debt instrument, maturity year range, end 2025  
Fleet loans (revolving credit) [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 1.24%  
Fleet loans (revolving credit) [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 1.34%  
Capital Leases (rental equipment) [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2021  
Debt instrument, maturity year range, end 2026  
Capital Leases (rental equipment) [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 1.92%  
Capital Leases (rental equipment) [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 5.04%  
Finance capital lease [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2024  
Debt instrument, maturity year range, end 2029  
Finance capital lease [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 1.60%  
Finance capital lease [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 4.22%  
Other Obligations [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2021  
Debt instrument, maturity year range, end 2049  
Other Obligations [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 1.75%  
Other Obligations [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 8.00%  
v3.21.2
Borrowings (Annual Maturities of Notes, Loans and Leases Payable) (Details)
$ in Thousands
Jun. 30, 2021
USD ($)
Long-term debt, by Maturity:  
2022 $ 510,380
2023 673,861
2024 1,152,549
2025 561,740
2026 410,089
Thereafter $ 1,393,508
v3.21.2
Borrowings (Components of Interest Expense) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Interest expense, borrowings:    
Interest expense $ 38,935 $ 41,911
Capitalized interest (2,030) (4,434)
Amortization of transaction costs 1,286 1,297
Interest expense resulting from derivatives 987 747
Total interest expense $ 39,178 $ 39,521
v3.21.2
Borrowings (Interest Rates and Company Borrowings) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Interest and debt expense:    
Weighted average interest rate during the quarter 1.39% 2.02%
Interest rate at quarter end 1.38% 1.67%
Maximum amount outstanding during the quarter $ 1,088,000 $ 1,175,000
Average amount outstanding during the quarter 1,073,055 1,161,385
Facility fees $ 71 $ 4
v3.21.2
Derivatives (Narratives) (Details)
$ in Millions
 3 Months Ended
Jun. 30, 2021
USD ($)
Interest Rate Derivatives [Abstract]  
Reclassify net losses on interest rate contracts from AOCI to earnings over the next twelve months $ 3.9
v3.21.2
Derivatives (Interest rate contracts designated as hedging instruments) (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Mar. 31, 2021
Interest Rate Fair Value Hedges [Abstract]    
Assets $ 0 $ 0
Liabilities 4,222 5,141
Notional amount (debt) $ 235,000 $ 235,000
v3.21.2
Derivatives (Effect of Interest Rate Contracts on the Statement of Operations) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
The effect of interest rate contracts on the statement of operations:    
(Gain) loss recognized in AOCI on interest rate contracts (effective portion) $ (919) $ (42)
Loss recognized in income on interest rate contracts $ 987 $ 747
v3.21.2
Accumulated other comprehensive income (loss) components of net of tax (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward]    
Balance as of March 31, 2021 $ 106,857  
Foreign currency translation (3,392) $ (2,917)
Unrealized net gain on investments (73,027) (45,499)
Change in fair value of cash flow hedges (51) (532)
Amounts reclassified into earnings on hedging activities 745 564
Other comprehensive income (loss) (75,725) (48,384)
Balance as of June 30, 2021 31,132  
Foreign Currency Translation [Member]    
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward]    
Balance as of March 31, 2021 (52,929)  
Foreign currency translation (3,392)  
Unrealized net gain on investments 0  
Change in fair value of cash flow hedges 0  
Amounts reclassified into earnings on hedging activities 0  
Other comprehensive income (loss) (3,392)  
Balance as of June 30, 2021 (56,321)  
Unrealized Net Gain on Investments [Member]    
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward]    
Balance as of March 31, 2021 167,653  
Foreign currency translation 0  
Unrealized net gain on investments (73,027)  
Change in fair value of cash flow hedges 0  
Amounts reclassified into earnings on hedging activities 0  
Other comprehensive income (loss) (73,027)  
Balance as of June 30, 2021 94,626  
Fair Market Value of Cash Flow Hedges [Member]    
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward]    
Balance as of March 31, 2021 (3,879)  
Foreign currency translation 0  
Unrealized net gain on investments 0  
Change in fair value of cash flow hedges (51)  
Amounts reclassified into earnings on hedging activities 745  
Other comprehensive income (loss) 694  
Balance as of June 30, 2021 (3,185)  
Postretirement Benefit Obligation Gain [Member]    
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward]    
Balance as of March 31, 2021 (3,988)  
Foreign currency translation 0  
Unrealized net gain on investments 0  
Change in fair value of cash flow hedges 0  
Amounts reclassified into earnings on hedging activities 0  
Other comprehensive income (loss) 0  
Balance as of June 30, 2021 (3,988)  
Accumulated Other Comprehensive Income (Loss) [Member]    
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward]    
Balance as of March 31, 2021 106,857  
Foreign currency translation (3,392) (2,917)
Unrealized net gain on investments (73,027) (45,499)
Change in fair value of cash flow hedges (51) (532)
Amounts reclassified into earnings on hedging activities 745 $ 564
Other comprehensive income (loss) (75,725)  
Balance as of June 30, 2021 $ 31,132  
v3.21.2
Stockholders' Equity (Narratives) (Details)
 3 Months Ended
Jun. 30, 2021
$ / shares
Dividends [Abstract]  
Dividends payable, date declared Jun. 09, 2021
Dividend paid, amount per share $ 0.50
Dividends payable, date of record Jun. 24, 2021
Dividends payable, date to be paid Jul. 08, 2021
v3.21.2
Leases (Narratives) (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Mar. 31, 2021
Leases [Abstract]      
Right Of Use Asset Obtained In Exchange For Operating Lease Liability $ 468.5   $ 513.6
Operating Cash Flows For Financing Leases 89.4   $ 92.5
Cash paid for finance leases 7.5 $ 7.0  
Cash paid for operating leases $ 45.2 $ 68.6  
v3.21.2
Leases (Components of our right-of-use assets) (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Mar. 31, 2021
Finance Lease [Abstract]    
Buildings and Improvements $ 135,174 $ 132,901
Furniture and equipment 22,176 22,316
Rental trailers and other rental equipment 197,981 203,594
Rental trucks 1,395,144 1,494,098
Right-of-use assets, gross 1,750,475 1,852,909
Less: Accumulated depreciation (846,231) (883,366)
Right of use assets, net 904,244 969,543
Finance Lease [Member]    
Finance Lease [Abstract]    
Buildings and Improvements 0 0
Furniture and equipment 22,176 22,316
Rental trailers and other rental equipment 197,981 203,594
Rental trucks 1,395,144 1,494,098
Right-of-use assets, gross 1,615,301 1,720,008
Less: Accumulated depreciation (800,426) (842,970)
Right of use assets, net 814,875 877,038
Operating Lease [Member]    
Finance Lease [Abstract]    
Buildings and Improvements 135,174 132,901
Furniture and equipment 0 0
Rental trailers and other rental equipment 0 0
Rental trucks 0 0
Right-of-use assets, gross 135,174 132,901
Less: Accumulated depreciation (45,805) (40,396)
Right of use assets, net $ 89,369 $ 92,505
v3.21.2
Leases (Finance Leases Weighted Average Remaining Lease Term and Discount Rate) (Details)
 3 Months Ended 12 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Finance Leases Weighted Average Remaining Lease Term And Discount Rate[Abstract]    
Remaining Lease Term Operating Lease Weighted Average 3 3
Finance Lease Weighted Average Discount Rate Percent 3.60% 3.60%
v3.21.2
Leases (Operating Leases Weighted Average Remaining Lease Term and Discount Rate) (Details)
 3 Months Ended 12 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Operating Leases Remaining Lease Term And Weighted Average Discount Rate [Abstract]    
Remaining Lease Term Finance Lease Weighted Average 14.8 14.7
Operating Lease Weighted Average Discount Rate Percent 4.60% 4.60%
v3.21.2
Leases (Components Of Lease Expense) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Lease cost:    
Operating lease costs $ 8,077 $ 7,137
Finance lease cost:    
Amortization of right of use assets 183,277 40,836
Interest on lease liabilities 4,571 6,282
Total finance lease cost $ 187,848 $ 47,118
v3.21.2
Leases (Maturities of lease liabilities) (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Mar. 31, 2021
Finance Lease Liabilities Payments Due [Abstract]    
2022 $ 168,277  
2023 132,482  
2024 98,586  
2025 68,555  
2026 35,679  
Thereafter 0  
Total lease payments 503,579  
Less: imputed interest (35,095)  
Present value of finance lease liabilities 468,484  
Operating Lease Liabilities Payments Due [Abstract]    
2022 24,926  
2023 22,560  
2024 21,418  
2025 6,414  
2026 3,560  
Thereafter 61,302  
Total lease payments 140,180  
Less: inputed interest (50,790)  
Present value of operating lease liabilities $ 89,390 $ 92,510
v3.21.2
Contingencies (Narratives) (Details)
$ in Millions
 3 Months Ended
Jun. 30, 2021
USD ($)
Covid 19 Pandemic  
Unusual Or Infrequent Item Net Gain Loss [Abstract]  
CARES act, refund estimate $ 366.0
v3.21.2
Related Party Transactions (Narratives) (Details) - USD ($)
$ in Millions
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Sac Holdings, Mercury, Four Sac, Five Sac, Galaxy and Private Mini [Member]    
Property Management Fee [Abstract]    
Property Management Fee Revenue $ 11.3 $ 10.1
Sac Holdings, Mercury, Four Sac, Five Sac, Galaxy and Private Mini [Member] | Minimum [Member]    
Property Management Fee [Abstract]    
Management fee rate 4.00%  
Sac Holdings, Mercury, Four Sac, Five Sac, Galaxy and Private Mini [Member] | Maximum [Member]    
Property Management Fee [Abstract]    
Management fee rate 10.00%  
Sac Holdings, Four Sac, Five Sac, Galaxy, and Private Mini [Member]    
Related party costs and expenses:    
Revenue, excluding dealer agreement commissions and expenses $ 7.2  
Cash flow, related party 6.4  
Revenue generated by the dealer agreement from related parties $ 108.6  
v3.21.2
Related Party Transactions (Related Party Revenue) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Related party transactions:    
Management fee revenue $ 8,449 $ 7,347
Revenue from related parties 8,449 7,347
Blackwater [Member]    
Related party transactions:    
Management fee revenue 7,180 6,148
Mercury [Member]    
Related party transactions:    
Management fee revenue $ 1,269 $ 1,199
v3.21.2
Related Party Transactions (Related Party Costs and Expenses) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Related party cost and expense:    
Related party expenses, total $ 23,506 $ 15,989
Blackwater [Member]    
Related party cost and expense:    
U-Haul lease expenses 626 657
U-Haul commission expenses $ 22,880 $ 15,332
v3.21.2
Related Party Transactions (Related Party Assets) (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Mar. 31, 2021
Related party assets:    
Amounts due to related parties $ (730) $ (1,353)
Related party assets 34,481 35,395
Blackwater [Member]    
Related party assets:    
Notes receivable 28,840 27,116
Mercury [Member]    
Related party assets:    
Notes receivable $ 6,371 $ 9,632
v3.21.2
Consolidating financial information by industry segment (Balance Sheets) (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2020
Mar. 31, 2020
ASSETS:        
Cash and cash equivalents $ 1,519,981 $ 1,194,012 $ 825,074 $ 494,352
Reinsurance recoverables and trade receivables, net 233,056 224,426    
Inventories, net 117,978 105,577    
Prepaid expenses 306,565 469,144    
Investments, fixed maturities and marketable equities 2,755,133 2,695,656    
Investments, other 525,893 489,759    
Deferred policy acquisition costs, net 101,169 89,749    
Other assets 46,910 47,730    
Right of use Assets - Financing 814,875 877,038    
Right of use Assets - Operating 89,369 92,505    
Related party assets 34,481 35,395    
Subtotal assets 6,545,410 6,320,991    
Investments in subsidiaries 0 0    
Property, plant and equipment, at cost:        
Land 1,110,300 1,075,813    
Buildings and improvements 5,284,224 5,163,705    
Furniture and equipment 796,077 786,505    
Property, plant and equipment (gross) 11,805,268 11,413,668    
Less: Accumulated depreciation (3,235,796) (3,083,053)    
Total property, plant and equipment 8,569,472 8,330,615    
Total assets 15,114,882 14,651,606 13,712,359  
Liabilities:        
Accounts payable and accrued expenses 696,797 645,575    
Notes, loans and leases payable 4,673,383 4,668,907    
Financing lease liability 468,484      
Operating lease liability 89,390 92,510    
Policy benefits and losses, claims and loss expenses payable 1,007,144 997,701    
Liabilities from investment contracts 2,226,560 2,161,530    
Other policyholders' funds and liabilities 10,989 12,420    
Deferred income 54,738 42,592    
Deferred income taxes, net 1,244,353 1,178,489    
Related party liabilities 0 0    
Total liabilities 10,003,354 9,799,724    
Stockholders' equity:        
Additional paid-in capital 453,819 453,819    
Accumulated other comprehensive loss 31,132 106,857    
Retained earnings 5,293,730 4,958,359    
Total stockholders' equity 5,111,528 4,851,882    
Total liabilities and stockholders' equity 15,114,882 14,651,606    
Rental Trailers and Other Rental Equipment [Member]        
Property, plant and equipment, at cost:        
Property subject to or available for operating lease, gross 495,012 477,921    
Rental Trucks [Member]        
Property, plant and equipment, at cost:        
Property subject to or available for operating lease, gross 4,119,655 3,909,724    
Series A Preferred Stock [Member]        
Stockholders' equity:        
Preferred stock, value, issued 0 0    
Series B Preferred Stock [Member]        
Stockholders' equity:        
Preferred stock, value, issued 0 0    
Serial Common Stock [Member]        
Stockholders' equity:        
Common stock, value, issued 0 0    
Amerco Common Stock [Member]        
Stockholders' equity:        
Common stock, value, issued 10,497 10,497    
Common Stock in Treasury [Member]        
Stockholders' equity:        
Treasury stock, value (525,653) (525,653)    
Preferred Stock in Treasury [Member]        
Stockholders' equity:        
Treasury stock, value (151,997) (151,997)    
Operating Segments [Member] | Moving and Storage Consolidations [Member]        
ASSETS:        
Cash and cash equivalents 1,455,973 1,010,275 770,941 459,078
Reinsurance recoverables and trade receivables, net 120,946 118,741    
Inventories, net 117,978 105,577    
Prepaid expenses 306,565 469,144    
Investments, fixed maturities and marketable equities 0 0    
Investments, other 20,733 20,733    
Deferred policy acquisition costs, net 0 0    
Other assets 43,439 44,763    
Right of use Assets - Financing 814,875 877,038    
Right of use Assets - Operating 89,034 92,245    
Related party assets 53,783 54,042    
Subtotal assets 3,023,326 2,792,558    
Investments in subsidiaries 677,909 741,860    
Property, plant and equipment, at cost:        
Land 1,110,300 1,075,813    
Buildings and improvements 5,284,224 5,163,705    
Furniture and equipment 796,077 786,505    
Property, plant and equipment (gross) 11,805,268 11,413,668    
Less: Accumulated depreciation (3,235,796) (3,083,053)    
Total property, plant and equipment 8,569,472 8,330,615    
Total assets 12,270,707 11,865,033    
Liabilities:        
Accounts payable and accrued expenses 679,461 636,257    
Notes, loans and leases payable 4,662,325 4,657,720    
Operating lease liability 89,042 92,236    
Policy benefits and losses, claims and loss expenses payable 433,394 427,073    
Liabilities from investment contracts 0 0    
Other policyholders' funds and liabilities 0 0    
Deferred income 54,738 42,592    
Deferred income taxes, net 1,217,716 1,136,149    
Related party liabilities 26,836 25,413    
Total liabilities 7,163,512 7,017,440    
Stockholders' equity:        
Additional paid-in capital 454,029 454,029    
Accumulated other comprehensive loss 26,799 102,568    
Retained earnings 5,293,520 4,958,149    
Total stockholders' equity 5,107,195 4,847,593    
Total liabilities and stockholders' equity 12,270,707 11,865,033    
Operating Segments [Member] | Moving and Storage Consolidations [Member] | Rental Trailers and Other Rental Equipment [Member]        
Property, plant and equipment, at cost:        
Property subject to or available for operating lease, gross 495,012 477,921    
Operating Segments [Member] | Moving and Storage Consolidations [Member] | Rental Trucks [Member]        
Property, plant and equipment, at cost:        
Property subject to or available for operating lease, gross 4,119,655 3,909,724    
Operating Segments [Member] | Moving and Storage Consolidations [Member] | Series A Preferred Stock [Member]        
Stockholders' equity:        
Preferred stock, value, issued 0 0    
Operating Segments [Member] | Moving and Storage Consolidations [Member] | Series B Preferred Stock [Member]        
Stockholders' equity:        
Preferred stock, value, issued 0 0    
Operating Segments [Member] | Moving and Storage Consolidations [Member] | Serial Common Stock [Member]        
Stockholders' equity:        
Common stock, value, issued 0 0    
Operating Segments [Member] | Moving and Storage Consolidations [Member] | Amerco Common Stock [Member]        
Stockholders' equity:        
Common stock, value, issued 10,497 10,497    
Operating Segments [Member] | Moving and Storage Consolidations [Member] | Common Stock in Treasury [Member]        
Stockholders' equity:        
Treasury stock, value (525,653) (525,653)    
Operating Segments [Member] | Moving and Storage Consolidations [Member] | Preferred Stock in Treasury [Member]        
Stockholders' equity:        
Treasury stock, value (151,997) (151,997)    
Operating Segments [Member] | Property and Casualty Insurance [Member]        
ASSETS:        
Cash and cash equivalents 3,246 5,658 4,119 4,794
Reinsurance recoverables and trade receivables, net 67,589 67,069    
Inventories, net 0 0    
Prepaid expenses 0 0    
Investments, fixed maturities and marketable equities 290,571 295,753    
Investments, other 94,028 90,412    
Deferred policy acquisition costs, net 0 0    
Other assets 829 436    
Right of use Assets - Financing 0 0    
Right of use Assets - Operating 184 92    
Related party assets 6,557 6,854    
Subtotal assets 463,004 466,274    
Investments in subsidiaries 0 0    
Property, plant and equipment, at cost:        
Land 0 0    
Buildings and improvements 0 0    
Furniture and equipment 0 0    
Property, plant and equipment (gross) 0 0    
Less: Accumulated depreciation 0 0    
Total property, plant and equipment 0 0    
Total assets 463,004 466,274    
Liabilities:        
Accounts payable and accrued expenses 2,260 2,029    
Notes, loans and leases payable 0 0    
Operating lease liability 188 96    
Policy benefits and losses, claims and loss expenses payable 179,294 178,942    
Liabilities from investment contracts 0 0    
Other policyholders' funds and liabilities 3,237 3,698    
Deferred income 0 0    
Deferred income taxes, net 11,667 13,046    
Related party liabilities 3,812 5,821    
Total liabilities 200,458 203,632    
Stockholders' equity:        
Additional paid-in capital 91,120 91,120    
Accumulated other comprehensive loss 15,148 22,546    
Retained earnings 152,977 145,675    
Total stockholders' equity 262,546 262,642    
Total liabilities and stockholders' equity 463,004 466,274    
Operating Segments [Member] | Property and Casualty Insurance [Member] | Rental Trailers and Other Rental Equipment [Member]        
Property, plant and equipment, at cost:        
Property subject to or available for operating lease, gross 0 0    
Operating Segments [Member] | Property and Casualty Insurance [Member] | Rental Trucks [Member]        
Property, plant and equipment, at cost:        
Property subject to or available for operating lease, gross 0 0    
Operating Segments [Member] | Property and Casualty Insurance [Member] | Series A Preferred Stock [Member]        
Stockholders' equity:        
Preferred stock, value, issued 0 0    
Operating Segments [Member] | Property and Casualty Insurance [Member] | Series B Preferred Stock [Member]        
Stockholders' equity:        
Preferred stock, value, issued 0 0    
Operating Segments [Member] | Property and Casualty Insurance [Member] | Serial Common Stock [Member]        
Stockholders' equity:        
Common stock, value, issued 0 0    
Operating Segments [Member] | Property and Casualty Insurance [Member] | Amerco Common Stock [Member]        
Stockholders' equity:        
Common stock, value, issued 3,301 3,301    
Operating Segments [Member] | Property and Casualty Insurance [Member] | Common Stock in Treasury [Member]        
Stockholders' equity:        
Treasury stock, value 0 0    
Operating Segments [Member] | Property and Casualty Insurance [Member] | Preferred Stock in Treasury [Member]        
Stockholders' equity:        
Treasury stock, value 0 0    
Operating Segments [Member] | Life Insurance [Member]        
ASSETS:        
Cash and cash equivalents 60,762 178,079 50,014 30,480
Reinsurance recoverables and trade receivables, net 44,521 38,616    
Inventories, net 0 0    
Prepaid expenses 0 0    
Investments, fixed maturities and marketable equities 2,464,562 2,399,903    
Investments, other 411,132 378,614    
Deferred policy acquisition costs, net 101,169 89,749    
Other assets 2,642 2,531    
Right of use Assets - Financing 0 0    
Right of use Assets - Operating 151 168    
Related party assets 13,797 13,850    
Subtotal assets 3,098,736 3,101,510    
Investments in subsidiaries 0 0    
Property, plant and equipment, at cost:        
Land 0 0    
Buildings and improvements 0 0    
Furniture and equipment 0 0    
Property, plant and equipment (gross) 0 0    
Less: Accumulated depreciation 0 0    
Total property, plant and equipment 0 0    
Total assets 3,098,736 3,101,510    
Liabilities:        
Accounts payable and accrued expenses 15,076 7,289    
Notes, loans and leases payable 11,058 11,187    
Operating lease liability 160 178    
Policy benefits and losses, claims and loss expenses payable 394,456 391,686    
Liabilities from investment contracts 2,226,560 2,161,530    
Other policyholders' funds and liabilities 7,752 8,722    
Deferred income 0 0    
Deferred income taxes, net 14,970 29,294    
Related party liabilities 13,341 12,406    
Total liabilities 2,683,373 2,622,292    
Stockholders' equity:        
Additional paid-in capital 26,271 26,271    
Accumulated other comprehensive loss 75,145 140,817    
Retained earnings 311,447 309,630    
Total stockholders' equity 415,363 479,218    
Total liabilities and stockholders' equity 3,098,736 3,101,510    
Operating Segments [Member] | Life Insurance [Member] | Rental Trailers and Other Rental Equipment [Member]        
Property, plant and equipment, at cost:        
Property subject to or available for operating lease, gross 0 0    
Operating Segments [Member] | Life Insurance [Member] | Rental Trucks [Member]        
Property, plant and equipment, at cost:        
Property subject to or available for operating lease, gross 0 0    
Operating Segments [Member] | Life Insurance [Member] | Series A Preferred Stock [Member]        
Stockholders' equity:        
Preferred stock, value, issued 0 0    
Operating Segments [Member] | Life Insurance [Member] | Series B Preferred Stock [Member]        
Stockholders' equity:        
Preferred stock, value, issued 0 0    
Operating Segments [Member] | Life Insurance [Member] | Serial Common Stock [Member]        
Stockholders' equity:        
Common stock, value, issued 0 0    
Operating Segments [Member] | Life Insurance [Member] | Amerco Common Stock [Member]        
Stockholders' equity:        
Common stock, value, issued 2,500 2,500    
Operating Segments [Member] | Life Insurance [Member] | Common Stock in Treasury [Member]        
Stockholders' equity:        
Treasury stock, value 0 0    
Operating Segments [Member] | Life Insurance [Member] | Preferred Stock in Treasury [Member]        
Stockholders' equity:        
Treasury stock, value 0 0    
Consolidation, Eliminations [Member]        
ASSETS:        
Cash and cash equivalents 0 0 $ 0 $ 0
Reinsurance recoverables and trade receivables, net 0 0    
Inventories, net 0 0    
Prepaid expenses 0 0    
Investments, fixed maturities and marketable equities 0 0    
Investments, other 0 0    
Deferred policy acquisition costs, net 0 0    
Other assets 0 0    
Right of use Assets - Financing 0 0    
Right of use Assets - Operating 0 0    
Related party assets (39,656) (39,351)    
Subtotal assets (39,656) (39,351)    
Investments in subsidiaries (677,909) (741,860)    
Property, plant and equipment, at cost:        
Land 0 0    
Buildings and improvements 0 0    
Furniture and equipment 0 0    
Property, plant and equipment (gross) 0 0    
Less: Accumulated depreciation 0 0    
Total property, plant and equipment 0 0    
Total assets (717,565) (781,211)    
Liabilities:        
Accounts payable and accrued expenses 0 0    
Notes, loans and leases payable 0 0    
Operating lease liability 0 0    
Policy benefits and losses, claims and loss expenses payable 0 0    
Liabilities from investment contracts 0 0    
Other policyholders' funds and liabilities 0 0    
Deferred income 0 0    
Deferred income taxes, net 0 0    
Related party liabilities (43,989) (43,640)    
Total liabilities (43,989) (43,640)    
Stockholders' equity:        
Additional paid-in capital (117,601) (117,601)    
Accumulated other comprehensive loss (85,960) (159,074)    
Retained earnings (464,214) (455,095)    
Total stockholders' equity (673,576) (737,571)    
Total liabilities and stockholders' equity (717,565) (781,211)    
Consolidation, Eliminations [Member] | Rental Trailers and Other Rental Equipment [Member]        
Property, plant and equipment, at cost:        
Property subject to or available for operating lease, gross 0 0    
Consolidation, Eliminations [Member] | Rental Trucks [Member]        
Property, plant and equipment, at cost:        
Property subject to or available for operating lease, gross 0 0    
Consolidation, Eliminations [Member] | Series A Preferred Stock [Member]        
Stockholders' equity:        
Preferred stock, value, issued 0 0    
Consolidation, Eliminations [Member] | Series B Preferred Stock [Member]        
Stockholders' equity:        
Preferred stock, value, issued 0 0    
Consolidation, Eliminations [Member] | Serial Common Stock [Member]        
Stockholders' equity:        
Common stock, value, issued 0 0    
Consolidation, Eliminations [Member] | Amerco Common Stock [Member]        
Stockholders' equity:        
Common stock, value, issued (5,801) (5,801)    
Consolidation, Eliminations [Member] | Common Stock in Treasury [Member]        
Stockholders' equity:        
Treasury stock, value 0 0    
Consolidation, Eliminations [Member] | Preferred Stock in Treasury [Member]        
Stockholders' equity:        
Treasury stock, value $ 0 $ 0    
v3.21.2
Consolidating financial information by industry segment (Statements of Operations) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Revenues:    
Self-moving equipment rentals $ 1,035,377 $ 654,285
Self-storage revenues 137,393 108,955
Self moving and self-storage products and service sales 104,885 91,350
Property management fees 8,449 7,347
Life insurance premiums 28,705 30,908
Property and casualty insurance premiums 16,869 13,734
Investment income interest and dividend 34,999 16,982
Other revenue 106,179 63,676
Total revenues 1,472,856 987,237
Costs and expenses:    
Operating expenses 614,529 492,662
Commission expenses 113,149 69,175
Cost of sales 69,915 52,831
Benefits and losses 47,298 39,577
Amortization of deferred policy acquisition costs 8,823 6,888
Lease expense 7,647 6,603
Depreciation, net of (gains) losses on disposals 121,717 165,671
Net (gains) losses on disposal of real estate (4,430) (256)
Total costs and expenses 978,648 833,151
Earnings (loss) from operations before equity in earnings of subsidiaries 494,208 154,086
Equity in earnings of subsidiaries 0 0
Earnings from operations 494,208 154,086
Other components of net periodic benefit costs (280) (247)
Interest expense (39,178) (39,521)
Pretax earnings 454,750 114,318
Income tax expense (109,575) (26,592)
Earnings available to common stockholders 345,175 87,726
Operating Segments [Member] | Moving and Storage Consolidations [Member]    
Revenues:    
Self-moving equipment rentals 1,036,213 654,913
Self-storage revenues 137,393 108,955
Self moving and self-storage products and service sales 104,885 91,350
Property management fees 8,449 7,347
Life insurance premiums 0 0
Property and casualty insurance premiums 0 0
Investment income interest and dividend 680 662
Other revenue 105,634 63,073
Total revenues 1,393,254 926,300
Costs and expenses:    
Operating expenses 601,831 480,081
Commission expenses 113,149 69,175
Cost of sales 69,915 52,831
Benefits and losses 0 0
Amortization of deferred policy acquisition costs 0 0
Lease expense 8,077 7,137
Depreciation, net of (gains) losses on disposals 121,717 165,671
Net (gains) losses on disposal of real estate (4,430) (256)
Total costs and expenses 910,259 774,639
Earnings (loss) from operations before equity in earnings of subsidiaries 482,995 151,661
Equity in earnings of subsidiaries 9,119 2,395
Earnings from operations 492,114 154,056
Other components of net periodic benefit costs (280) (247)
Interest expense (39,443) (39,794)
Pretax earnings 452,391 114,015
Income tax expense (107,216) (26,289)
Earnings available to common stockholders 345,175 87,726
Operating Segments [Member] | Property and Casualty Insurance [Member]    
Revenues:    
Self-moving equipment rentals 0 0
Self-storage revenues 0 0
Self moving and self-storage products and service sales 0 0
Property management fees 0 0
Life insurance premiums 0 0
Property and casualty insurance premiums 17,443 14,507
Investment income interest and dividend 6,013 (873)
Other revenue 0 0
Total revenues 23,456 13,634
Costs and expenses:    
Operating expenses 8,813 8,825
Commission expenses 0 0
Cost of sales 0 0
Benefits and losses 5,227 4,030
Amortization of deferred policy acquisition costs 0 0
Lease expense 184 1
Depreciation, net of (gains) losses on disposals 0 0
Net (gains) losses on disposal of real estate 0 0
Total costs and expenses 14,224 12,856
Earnings (loss) from operations before equity in earnings of subsidiaries 9,232 778
Equity in earnings of subsidiaries 0 0
Earnings from operations 9,232 778
Other components of net periodic benefit costs 0 0
Interest expense 0 0
Pretax earnings 9,232 778
Income tax expense (1,930) (162)
Earnings available to common stockholders 7,302 616
Operating Segments [Member] | Life Insurance [Member]    
Revenues:    
Self-moving equipment rentals 0 0
Self-storage revenues 0 0
Self moving and self-storage products and service sales 0 0
Property management fees 0 0
Life insurance premiums 28,705 30,908
Property and casualty insurance premiums 0 0
Investment income interest and dividend 29,324 18,006
Other revenue 630 739
Total revenues 58,659 49,653
Costs and expenses:    
Operating expenses 5,375 5,288
Commission expenses 0 0
Cost of sales 0 0
Benefits and losses 42,071 35,547
Amortization of deferred policy acquisition costs 8,823 6,888
Lease expense 24 10
Depreciation, net of (gains) losses on disposals 0 0
Net (gains) losses on disposal of real estate 0 0
Total costs and expenses 56,293 47,733
Earnings (loss) from operations before equity in earnings of subsidiaries 2,366 1,920
Equity in earnings of subsidiaries 0 0
Earnings from operations 2,366 1,920
Other components of net periodic benefit costs 0 0
Interest expense (120) 0
Pretax earnings 2,246 1,920
Income tax expense (429) (141)
Earnings available to common stockholders 1,817 1,779
Consolidation, Eliminations [Member]    
Revenues:    
Self-moving equipment rentals (836) (628)
Self-storage revenues 0 0
Self moving and self-storage products and service sales 0 0
Property management fees 0 0
Life insurance premiums 0 0
Property and casualty insurance premiums (574) (773)
Investment income interest and dividend (1,018) (813)
Other revenue (85) (136)
Total revenues (2,513) (2,350)
Costs and expenses:    
Operating expenses (1,490) (1,532)
Commission expenses 0 0
Cost of sales 0 0
Benefits and losses 0 0
Amortization of deferred policy acquisition costs 0 0
Lease expense (638) (545)
Depreciation, net of (gains) losses on disposals 0 0
Net (gains) losses on disposal of real estate 0 0
Total costs and expenses (2,128) (2,077)
Earnings (loss) from operations before equity in earnings of subsidiaries (385) (273)
Equity in earnings of subsidiaries (9,119) (2,395)
Earnings from operations (9,504) (2,668)
Other components of net periodic benefit costs 0 0
Interest expense 385 273
Pretax earnings (9,119) (2,395)
Income tax expense 0 0
Earnings available to common stockholders $ (9,119) $ (2,395)
v3.21.2
Consolidating financial information by industry segment (Cash Flow Statements) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Cash flow from operating activities:    
Net earnings $ 345,175 $ 87,726
Earnings from consolidated entities 0 0
Adjustments to reconcile net earnings to cash provided by operations:    
Depreciation 172,040 166,740
Amortization of deferred policy acquisition costs 8,823 6,888
Amortization of premiums and accretion of discounts related to investments, net 4,361 3,550
Amortization of debt issuance costs 1,332 1,297
Interest credited to policyholders 15,583 7,667
Change in allowance for losses on trade receivables (484) 60
Change in allowance for inventory reserves 3,403 (99)
Net gain on sale of real and personal property (50,323) (1,069)
Net losses on disposal of real estate (4,430) (256)
Net (gain) loss on sale of investments (2,469) 2,014
Net losses on equity investments (2,231) 3,989
Deferred income tax 82,374 27,534
Net change in other operating assets and liabilities:    
Reinsurance recoverables and trade receivables (8,082) (23,594)
Inventories (15,765) 350
Prepaid expenses 162,706 (22,831)
Capitalization of deferred policy acquisition costs (8,990) (7,308)
Other assets (853) 74
Related party assets 562 7,329
Accounts payable and accrued expenses 71,599 58,273
Policy benefits and losses, claims and loss expenses payable 9,064 528
Other policyholders' funds and liabilities (1,430) (3,426)
Deferred income 11,863 14,898
Related party liabilities 385 (249)
Net cash provided by operating activities 794,213 330,085
Cash flow from investing activities:    
Escrow deposits 1,887 1,401
Purchase of:    
Property, plant and equipment (508,411) (249,740)
Short term investments (11,810) (9,625)
Fixed maturity investments (281,507) (94,193)
Preferred stock (8,000) 0
Real estate (67) (192)
Mortgage loans (42,538) (33,300)
Proceeds from sale of:    
Property, plant and equipment 182,146 76,412
Short term investments 12,558 2,448
Fixed maturity investments 126,956 110,165
Mortgage loans 5,628 1,432
Net cash used by investing activities (523,158) (195,192)
Cash flow from financing activities:    
Borrowings from credit facilities 161,854 377,051
Principal repayments on credit facilities (109,334) (154,089)
Payment of debt issuance costs (352) (1,677)
Capital lease payments (45,170) (68,554)
Net contribution from (to) related party 0 18,599
Investment contract deposits 113,779 75,366
Investment contract withdrawals (64,332) (51,633)
Net cash provided by (used in) financing activities 56,445 195,063
Effects of exchange rate on cash (1,531) 766
Increase (decrease) in cash and cash equivalents 325,969 330,722
Cash and cash equivalents at the beginning of period 1,194,012 494,352
Cash and cash equivalents at the end of the period 1,519,981 825,074
Operating Segments [Member] | Moving and Storage Consolidations [Member]    
Cash flow from operating activities:    
Net earnings 345,175 87,726
Earnings from consolidated entities (9,119) (2,395)
Adjustments to reconcile net earnings to cash provided by operations:    
Depreciation 172,040 166,740
Amortization of deferred policy acquisition costs 0 0
Amortization of premiums and accretion of discounts related to investments, net 0 0
Amortization of debt issuance costs 1,332 1,297
Interest credited to policyholders 0 0
Change in allowance for losses on trade receivables (478) 60
Change in allowance for inventory reserves 3,403 (99)
Net gain on sale of real and personal property (50,323) (1,069)
Net losses on disposal of real estate (4,430) (256)
Net (gain) loss on sale of investments 0 0
Net losses on equity investments 0 0
Deferred income tax 81,341 28,939
Net change in other operating assets and liabilities:    
Reinsurance recoverables and trade receivables (1,658) (24,749)
Inventories (15,765) 350
Prepaid expenses 162,706 (22,831)
Capitalization of deferred policy acquisition costs 0 0
Other assets (436) 758
Related party assets 302 7,302
Accounts payable and accrued expenses 60,902 56,522
Policy benefits and losses, claims and loss expenses payable 5,942 294
Other policyholders' funds and liabilities 0 0
Deferred income 12,125 11,238
Related party liabilities 1,422 1,867
Net cash provided by operating activities 764,481 311,694
Cash flow from investing activities:    
Escrow deposits 1,887 1,401
Purchase of:    
Property, plant and equipment (508,411) (249,740)
Short term investments 0 0
Fixed maturity investments 0 0
Preferred stock 0  
Real estate 0 0
Mortgage loans 0 0
Proceeds from sale of:    
Property, plant and equipment 182,146 76,412
Short term investments 0 0
Fixed maturity investments 0 0
Mortgage loans 0 0
Net cash used by investing activities (324,378) (171,927)
Cash flow from financing activities:    
Borrowings from credit facilities 161,854 367,451
Principal repayments on credit facilities (109,206) (144,489)
Payment of debt issuance costs (352) (1,677)
Capital lease payments (45,170) (68,554)
Net contribution from (to) related party   18,599
Investment contract deposits 0 0
Investment contract withdrawals 0 0
Net cash provided by (used in) financing activities 7,126 171,330
Effects of exchange rate on cash (1,531) 766
Increase (decrease) in cash and cash equivalents 445,698 311,863
Cash and cash equivalents at the beginning of period 1,010,275 459,078
Cash and cash equivalents at the end of the period 1,455,973 770,941
Operating Segments [Member] | Property and Casualty Insurance [Member]    
Cash flow from operating activities:    
Net earnings 7,302 616
Earnings from consolidated entities 0 0
Adjustments to reconcile net earnings to cash provided by operations:    
Depreciation 0 0
Amortization of deferred policy acquisition costs 0 0
Amortization of premiums and accretion of discounts related to investments, net 413 395
Amortization of debt issuance costs 0 0
Interest credited to policyholders 0 0
Change in allowance for losses on trade receivables (5) 0
Change in allowance for inventory reserves 0 0
Net gain on sale of real and personal property 0 0
Net losses on disposal of real estate 0 0
Net (gain) loss on sale of investments (37) (13)
Net losses on equity investments (2,231) 3,989
Deferred income tax 604 1,070
Net change in other operating assets and liabilities:    
Reinsurance recoverables and trade receivables (520) 5,725
Inventories 0 0
Prepaid expenses 0 0
Capitalization of deferred policy acquisition costs 0 0
Other assets (323) (340)
Related party assets 260 27
Accounts payable and accrued expenses 225 (246)
Policy benefits and losses, claims and loss expenses payable 352 (2,769)
Other policyholders' funds and liabilities (461) (4,089)
Deferred income 0 0
Related party liabilities (1,972) (834)
Net cash provided by operating activities 3,607 3,531
Cash flow from investing activities:    
Escrow deposits 0 0
Purchase of:    
Property, plant and equipment 0 0
Short term investments (11,680) (8,989)
Fixed maturity investments (7,466) (1,864)
Preferred stock 0  
Real estate 0 0
Mortgage loans (4,850) 0
Proceeds from sale of:    
Property, plant and equipment 0 0
Short term investments 12,558 1,980
Fixed maturity investments 5,136 4,402
Mortgage loans 283 265
Net cash used by investing activities (6,019) (4,206)
Cash flow from financing activities:    
Borrowings from credit facilities 0 0
Principal repayments on credit facilities 0 0
Payment of debt issuance costs 0 0
Capital lease payments 0 0
Net contribution from (to) related party   0
Investment contract deposits 0 0
Investment contract withdrawals 0 0
Net cash provided by (used in) financing activities 0 0
Effects of exchange rate on cash 0 0
Increase (decrease) in cash and cash equivalents (2,412) (675)
Cash and cash equivalents at the beginning of period 5,658 4,794
Cash and cash equivalents at the end of the period 3,246 4,119
Operating Segments [Member] | Life Insurance [Member]    
Cash flow from operating activities:    
Net earnings 1,817 1,779
Earnings from consolidated entities 0 0
Adjustments to reconcile net earnings to cash provided by operations:    
Depreciation 0 0
Amortization of deferred policy acquisition costs 8,823 6,888
Amortization of premiums and accretion of discounts related to investments, net 3,948 3,155
Amortization of debt issuance costs 0 0
Interest credited to policyholders 15,583 7,667
Change in allowance for losses on trade receivables (1) 0
Change in allowance for inventory reserves 0 0
Net gain on sale of real and personal property 0 0
Net losses on disposal of real estate 0 0
Net (gain) loss on sale of investments (2,432) 2,027
Net losses on equity investments 0 0
Deferred income tax 429 (2,475)
Net change in other operating assets and liabilities:    
Reinsurance recoverables and trade receivables (5,904) (4,570)
Inventories 0 0
Prepaid expenses 0 0
Capitalization of deferred policy acquisition costs (8,990) (7,308)
Other assets (94) (344)
Related party assets 0 0
Accounts payable and accrued expenses 10,472 1,997
Policy benefits and losses, claims and loss expenses payable 2,770 3,003
Other policyholders' funds and liabilities (969) 663
Deferred income (262) 3,660
Related party liabilities 935 (1,282)
Net cash provided by operating activities 26,125 14,860
Cash flow from investing activities:    
Escrow deposits 0 0
Purchase of:    
Property, plant and equipment 0 0
Short term investments (130) (636)
Fixed maturity investments (274,041) (92,329)
Preferred stock (8,000)  
Real estate (67) (192)
Mortgage loans (37,688) (33,300)
Proceeds from sale of:    
Property, plant and equipment 0 0
Short term investments 0 468
Fixed maturity investments 121,820 105,763
Mortgage loans 5,345 1,167
Net cash used by investing activities (192,761) (19,059)
Cash flow from financing activities:    
Borrowings from credit facilities 0 9,600
Principal repayments on credit facilities (128) (9,600)
Payment of debt issuance costs 0 0
Capital lease payments 0 0
Net contribution from (to) related party   0
Investment contract deposits 113,779 75,366
Investment contract withdrawals (64,332) (51,633)
Net cash provided by (used in) financing activities 49,319 23,733
Effects of exchange rate on cash 0 0
Increase (decrease) in cash and cash equivalents (117,317) 19,534
Cash and cash equivalents at the beginning of period 178,079 30,480
Cash and cash equivalents at the end of the period 60,762 50,014
Consolidation, Eliminations [Member]    
Cash flow from operating activities:    
Net earnings (9,119) (2,395)
Earnings from consolidated entities 9,119 2,395
Adjustments to reconcile net earnings to cash provided by operations:    
Depreciation 0 0
Amortization of deferred policy acquisition costs 0 0
Amortization of premiums and accretion of discounts related to investments, net 0 0
Amortization of debt issuance costs 0 0
Interest credited to policyholders 0 0
Change in allowance for losses on trade receivables 0 0
Change in allowance for inventory reserves 0 0
Net gain on sale of real and personal property 0 0
Net losses on disposal of real estate 0 0
Net (gain) loss on sale of investments 0 0
Net losses on equity investments 0 0
Deferred income tax 0 0
Net change in other operating assets and liabilities:    
Reinsurance recoverables and trade receivables 0 0
Inventories 0 0
Prepaid expenses 0 0
Capitalization of deferred policy acquisition costs 0 0
Other assets 0 0
Related party assets 0 0
Accounts payable and accrued expenses 0 0
Policy benefits and losses, claims and loss expenses payable 0 0
Other policyholders' funds and liabilities 0 0
Deferred income 0 0
Related party liabilities 0 0
Net cash provided by operating activities 0 0
Cash flow from investing activities:    
Escrow deposits 0 0
Purchase of:    
Property, plant and equipment 0 0
Short term investments 0 0
Fixed maturity investments 0 0
Preferred stock 0  
Real estate 0 0
Mortgage loans 0 0
Proceeds from sale of:    
Property, plant and equipment 0 0
Short term investments 0 0
Fixed maturity investments 0 0
Mortgage loans 0 0
Net cash used by investing activities 0 0
Cash flow from financing activities:    
Borrowings from credit facilities 0 0
Principal repayments on credit facilities 0 0
Payment of debt issuance costs 0 0
Capital lease payments 0 0
Net contribution from (to) related party   0
Investment contract deposits 0 0
Investment contract withdrawals 0 0
Net cash provided by (used in) financing activities 0 0
Effects of exchange rate on cash 0 0
Increase (decrease) in cash and cash equivalents 0 0
Cash and cash equivalents at the beginning of period 0 0
Cash and cash equivalents at the end of the period $ 0 $ 0
v3.21.2
Industry Segment and Geographic Area Data (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Mar. 31, 2021
Quarter ended:      
Total revenues $ 1,472,856 $ 987,237  
Depreciation and amortization, net of (gains) losses on disposals 126,110 172,303  
Interest expense 39,178 39,521  
Pretax earnings (loss) 454,750 114,318  
Income tax expense 109,575 26,592  
Identifiable assets 15,114,882 13,712,359 $ 14,651,606
United States [Member]      
Quarter ended:      
Total revenues 1,396,361 942,803  
Depreciation and amortization, net of (gains) losses on disposals 127,650 168,526  
Interest expense 38,128 38,654  
Pretax earnings (loss) 437,949 111,949  
Income tax expense 105,302 25,783  
Identifiable assets 14,661,722 13,279,882  
Canada [Member]      
Quarter ended:      
Total revenues 76,495 44,434  
Depreciation and amortization, net of (gains) losses on disposals (1,540) 3,777  
Interest expense 1,050 867  
Pretax earnings (loss) 16,801 2,369  
Income tax expense 4,273 809  
Identifiable assets $ 453,160 $ 432,477  
v3.21.2
Employee Benefit Plans (Components of net periodic benefit costs post retirement benefits) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Postemployment Benefits [Abstract]    
Service cost for benefits earned during the period $ 350 $ 317
Other components of net periodic benefit costs:    
Interest cost on accumulated postretirement benefit 227 230
Other components 53 17
Total other components of net periodic benefit costs 280 247
Net periodic postretirement benefit cost $ 630 $ 564
v3.21.2
Fair Value Measurements (Narratives) (Details)
$ in Millions
 3 Months Ended
Jun. 30, 2021
USD ($)
Fair Value Disclosures [Abstract]  
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales $ 0.2
v3.21.2
Fair Value Measurements (Carrying and Estimated Fair Values within Fair Value Hierarchy) (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Mar. 31, 2021
Assets    
Reinsurance recoverables and trade receivables, net $ 233,056 $ 224,426
Mortgage loans, net 428,140 391,230
Other investments 97,753 98,529
Total 758,949 714,185
Liabilities    
Notes, loans and leases payable, gross 4,497,078 4,449,691
Total 4,497,078 4,449,691
Level 1 [Member]    
Assets    
Reinsurance recoverables and trade receivables, net 0 0
Mortgage loans, net 0 0
Other investments 0 0
Total 0 0
Liabilities    
Notes, loans and leases payable, gross 0 0
Total 0 0
Level 2 [Member]    
Assets    
Reinsurance recoverables and trade receivables, net 0 0
Mortgage loans, net 0 0
Other investments 0 0
Total 0 0
Liabilities    
Notes, loans and leases payable, gross 4,702,127 4,698,615
Total 4,702,127 4,698,615
Level 3 [Member]    
Assets    
Reinsurance recoverables and trade receivables, net 233,056 224,426
Mortgage loans, net 428,140 391,230
Other investments 97,753 98,529
Total 758,949 714,185
Liabilities    
Notes, loans and leases payable, gross 0 0
Total 0 0
Carrying Value [Member]    
Assets    
Reinsurance recoverables and trade receivables, net 233,056 224,426
Mortgage loans, net 428,140 391,230
Other investments 97,753 98,529
Total 758,949 714,185
Liabilities    
Notes, loans and leases payable, gross 4,702,127 4,698,615
Total $ 4,702,127 $ 4,698,615
v3.21.2
Fair Value Measurements (Financial instruments level within the fair value hierarchy) (Details) - USD ($)
$ in Thousands
Jun. 30, 2021
Mar. 31, 2021
Assets:    
Short-term investments $ 1,311,376 $ 839,250
Fixed maturities - available for sale 2,703,053 2,653,539
Preferred stock 29,408 21,677
Common stock 22,672 20,440
Derivatives 6,789 6,601
Total 4,073,298 3,541,507
Liabilities:    
Derivatives 4,222 5,141
Total 4,222 5,141
Level 1 [Member]    
Assets:    
Short-term investments 1,311,376 839,250
Fixed maturities - available for sale 7,185 6,967
Preferred stock 29,408 21,677
Common stock 22,672 20,440
Derivatives 6,789 6,601
Total 1,377,430 894,935
Liabilities:    
Derivatives 0 0
Total 0 0
Level 2 [Member]    
Assets:    
Short-term investments 0 0
Fixed maturities - available for sale 2,695,712 2,646,415
Preferred stock 0 0
Common stock 0 0
Derivatives 0 0
Total 2,695,712 2,646,415
Liabilities:    
Derivatives 4,222 5,141
Total 4,222 5,141
Level 3 [Member]    
Assets:    
Short-term investments 0 0
Fixed maturities - available for sale 156 157
Preferred stock 0 0
Common stock 0 0
Derivatives 0 0
Total 156 157
Liabilities:    
Derivatives 0 0
Total $ 0 $ 0
v3.21.2
Revenue Recognition (Revenue disaggregated by timing of revenue recognition) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Revenue From Contract With Customer [Abstract]    
Revenues Recognized Over Time $ 79,815 $ 44,938
Revenues recognized at a point in time 120,718 104,848
Total revenues recognized under ASC 606 200,533 149,786
Revenues recognized under ASC 840 1,191,010 774,694
Revenues recognized under ASC 944 46,314 45,775
Revenues recognized under ASC 320 34,999 16,982
Total revenues $ 1,472,856 $ 987,237
v3.21.2
Revenue Recognition (Revenue over time) (Details)
$ in Thousands
Mar. 31, 2021
USD ($)
Contract With Customer Liability [Abstract]  
2020 $ 22,632
2021 12,621
2022 8,866
2023 6,856
2024 5,398
Thereafter 53,835
Self Moving Equipment [Member]  
Contract With Customer Liability [Abstract]  
2020 6,560
2021 0
2022 0
2023 0
2024 0
Thereafter 0
Property Lease Revenue [Member]  
Contract With Customer Liability [Abstract]  
2020 16,072
2021 12,621
2022 8,866
2023 6,856
2024 5,398
Thereafter $ 53,835
v3.21.2
Allowance For Credit Losses (Narratives) (Details)
$ in Millions
 3 Months Ended
Jun. 30, 2021
USD ($)
Receivables [Abstract]  
Trade receivable components 2
Allowance for expected credit losses $ 2.5
Available for sale securities, accrued interest receivable $ 26.6
Financing Receivable Allowance For Credit Loss Additional Information [Abstract]  
Reinsurance paid percentage of total assets 1.00%
Premiums Receivable Gross $ 2.6
Credit card receivables  
Receivables [Abstract]  
Average Historical Chargeback Term For credit card receivable, the Company uses a trailing 13 months average historical chargeback percentage of total credit card receivable. The Company rents equipment to corporate customers in which payment terms are 30 days.
v3.21.2
Allowance For Credit Losses (Reserve Allowance For Various Credit Loss) (Details)
$ in Thousands
 3 Months Ended
Jun. 30, 2021
USD ($)
Valuation And Qualifying Accounts [Abstract]  
March 31, 2021 $ 4,656
Transition adjustment current expected credit losses (566)
Write-offs against allowance 0
Recoveries 0
June 30, 2021 4,090
Trade Receivables  
Valuation And Qualifying Accounts [Abstract]  
March 31, 2021 2,835
Transition adjustment current expected credit losses (291)
Write-offs against allowance 0
Recoveries 0
June 30, 2021 2,544
Investments, Fixed Maturities  
Valuation And Qualifying Accounts [Abstract]  
March 31, 2021 1,320
Transition adjustment current expected credit losses (279)
Write-offs against allowance 0
Recoveries 0
June 30, 2021 1,041
Investments, Other  
Valuation And Qualifying Accounts [Abstract]  
March 31, 2021 501
Transition adjustment current expected credit losses 4
Write-offs against allowance 0
Recoveries 0
June 30, 2021 $ 505
v3.21.2
Accounting Pronouncements (Narratives) (Details)
$ in Thousands
 3 Months Ended
Jun. 30, 2020
USD ($)
Allowance For Credit Loss [Abstract]  
Allowance For Doubtful Accounts Provision For Credit Losses $ 2,880
v3.21.2
Label Element Value
Fleet Loans Revolving Credit [Member]  
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount $ 553,000,000
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 535,000,000
Finance Lease [Member]  
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 718,585,000
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 644,375,000
Rental Truck (amortizing loans) First Loan [Member]  
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 162,528,000
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 176,295,000
Senior Loans [Member]  
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 2,122,167,000
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 2,125,324,000
Capital Lease Obligations [Member]  
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 468,484,000
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 513,623,000
Other Obligations [Member]  
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 87,106,000
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 86,085,000
Working Capital Loans [Member]  
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 535,000,000
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 535,000,000
Real estate loan (amortizing term) [Member]  
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount 55,257,000
Debt Instrument Carrying Amount us-gaap_DebtInstrumentCarryingAmount $ 82,913,000