AMERCO /NV/, 10-Q filed on 03 Aug 22
 | XBRL Documents
v3.22.2
Document and Entity Information
 3 Months Ended
Jun. 30, 2022
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 2023
Trading Symbol UHAL
Document Type 10-Q
Document Fiscal Period Focus Q1
Document Period End Date Jun. 30, 2022
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, $0.25 par value
Security Exchange Name NASDAQ
Document Quarterly Report true
Document Transition Report false
v3.22.2
Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
ASSETS:    
Cash and cash equivalents $ 3,098,271 $ 2,704,137
Reinsurance recoverables and trade receivables, net 219,574 229,343
Inventories, net 164,579 158,888
Prepaid expenses 231,714 236,915
Investments, fixed maturities and marketable equities 2,669,986 2,893,399
Investments, other 557,124 543,755
Deferred policy acquisition costs, net 129,568 103,828
Other assets 53,477 60,409
Right of use Assets - Financing 568,223 620,824
Right of use Assets - Operating 72,538 74,382
Related party assets 45,190 47,851
Subtotal assets 7,810,244 7,673,731
Property, plant and equipment, at cost:    
Land 1,354,587 1,283,142
Buildings and improvements 6,154,373 5,974,639
Furniture and equipment 858,094 846,132
Property, plant and equipment (gross) 13,912,488 13,358,406
Less: Accumulated depreciation (3,891,128) (3,732,556)
Total property, plant and equipment 10,021,360 9,625,850
Total assets 17,831,604 17,299,581
Liabilities:    
Accounts payable and accrued expenses 722,617 677,785
Notes, loans and leases payable 6,232,564 6,022,497
Financing lease liability 312,411  
Operating lease liability 72,277 74,197
Policy benefits and losses, claims and loss expenses payable 988,030 978,254
Liabilities from investment contracts 2,374,250 2,336,238
Other policyholders' funds and liabilities 11,999 10,812
Deferred income 63,647 49,157
Deferred income taxes, net 1,292,369 1,265,358
Total liabilities 11,757,753 11,414,298
Commitments and contingencies (notes 4, 8 and 9)
Stockholders' equity:    
Additional paid-in capital 453,819 453,819
Accumulated other comprehensive loss (89,246) 46,384
Retained earnings 6,376,431 6,052,233
Total stockholders' equity 6,073,851 5,885,283
Total liabilities and stockholders' equity 17,831,604 17,299,581
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 671,880 615,679
Rental Trucks [Member]    
Property, plant and equipment, at cost:    
Property subject to or available for operating lease, gross $ 4,873,554 $ 4,638,814
v3.22.2
Condensed Consolidated Balance Sheets Parenthetical
Jun. 30, 2022
$ / 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, par or stated value per share | $ / shares $ 0.25
Serial 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
v3.22.2
Condensed Consolidated Statements of Operations - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Revenues:    
Self-moving equipment rentals $ 1,090,775 $ 1,035,377
Self-storage revenues 173,177 137,393
Self moving and self-storage products and service sales 109,351 104,885
Property management fees 9,139 8,449
Life insurance premiums 25,781 28,705
Property and casualty insurance premiums 19,972 16,869
Investment income interest and dividend 33,573 34,999
Other revenue 136,072 106,179
Total revenues 1,597,840 1,472,856
Costs and expenses:    
Operating expenses 733,167 614,529
Commission expenses 118,493 113,149
Cost of sales 79,671 69,915
Benefits and losses 44,100 47,298
Amortization of deferred policy acquisition costs 7,672 8,823
Lease expense 7,475 7,647
Depreciation, net of (gains) losses on disposals 113,796 121,717
Net (gains) losses on disposal of real estate 2,307 (4,430)
Total costs and expenses 1,106,681 978,648
Earnings from operations 491,159 494,208
Other components of net periodic benefit costs (304) (280)
Interest expense (49,799) (39,178)
Pretax earnings 441,056 454,750
Income tax expense (107,054) (109,575)
Earnings available to common stockholders $ 334,002 $ 345,175
Basic and diluted earnings per common share $ 17.03 $ 17.60
Weighted average common shares outstanding: basic and diluted 19,607,788 19,607,788
v3.22.2
Condensed Consolidated Statements of Operations Parenthetical - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Depreciation:    
Net gain on sale of real and personal property $ (64,348) $ (50,323)
Related party:    
Related party revenues, net of eliminations 9,139 8,449
Related party, costs and expenses, net of eliminations $ 25,486 $ 23,506
v3.22.2
Condensed Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Comprehensive income (loss) (pretax):    
Pretax earnings (loss) $ 441,056 $ 454,750
Comprehensive income (loss) (tax effect):    
Income tax expense (107,054) (109,575)
Comprehensive income (loss) (net of tax):    
Net earnings 334,002 345,175
Other comprehensive income (loss):    
Foreign currency translation (pretax) 197 (3,392)
Foreign currency translation (tax effect) 0 0
Foreign currency translation (net of tax) 197 (3,392)
Unrealized gain (loss) on investments (pretax) (173,046) (92,451)
Unrealized gain (loss) on investments (tax effect) 36,664 19,424
Unrealized gain (loss) on investments (net of tax) (136,382) (73,027)
Change in fair value of cash flow hedges (pretax) 170 (68)
Change in fair value of cash flow hedges (tax effect) (42) 17
Change in fair value of cash flow hedges (net of tax) 128 (51)
Amounts reclassifed into earnings on hedging activities (pretax) 566 987
Amounts reclassified into earnings on hedging activities (tax effect) (139) (242)
Amounts reclassified into earnings on hedging activities (net of tax) 427 745
Total other comprehensive income (loss) (pretax) (172,113) (94,924)
Total other comprehensive income (loss) (tax effect) 36,483 19,199
Total other comprehensive income (loss) (net of tax) (135,630) (75,725)
Total comprehensive income (pretax) 268,943 359,826
Total comprehensive income (tax effect) (70,571) (90,376)
Total comprehensive income (net of tax) $ 198,372 $ 269,450
v3.22.2
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, 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)
Balance, beginning of period at Mar. 31, 2022 5,885,283 10,497 453,819 46,384 6,052,233 (525,653) (151,997)
Cosolidated statement of change in equity              
Foreign currency translation 197 0 0 197 0 0 0
Unrealized net gain (loss) on investments, net of tax (136,382) 0 0 (136,382) 0 0 0
Change in fair value of cash flow hedges, net of tax 128 0 0 128 0 0 0
Amounts reclassified into earnings on hedging activities 427 0 0 427 0 0 0
Net earnings 334,002 0 0 0 334,002 0 0
Common stock dividends (9,804) 0 0 0 (9,804) 0 0
Net activity 188,568 0 0 (135,630) 324,198 0 0
Balance, end of period at Jun. 30, 2022 $ 6,073,851 $ 10,497 $ 453,819 $ (89,246) $ 6,376,431 $ (525,653) $ (151,997)
v3.22.2
Condensed Consolidated Statements of Changes in Stockholders' Equity Parenthetical - $ / shares
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Common Stock, Dividends, Per Share, Declared $ 0.50 $ 0.50
v3.22.2
Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Cash flow from operating activities:    
Net earnings $ 334,002 $ 345,175
Adjustments to reconcile net earnings to cash provided by operations:    
Depreciation 178,144 172,040
Amortization of deferred policy acquisition costs 7,672 8,823
Amortization of premiums and accretion of discounts related to investments, inc 4,929 4,361
Amortization of debt issuance costs 1,473 1,332
Interest credited to policyholders 15,157 15,583
Change in allowance for losses on trade receivables (6,151) (484)
Change in allowance for inventory reserves 4,646 3,403
Net gain on sale of real and personal property (64,348) (50,323)
Net losses on disposal of real estate 2,307 (4,430)
Net (gain) loss on sale of investments 268 (2,469)
Net (gain) losses equity investments 1,551 (2,231)
Deferred income tax 63,493 82,374
Net change in other operating assets and liabilities:    
Reinsurance recoverables and trade receivables 15,894 (8,082)
Inventories (10,347) (15,765)
Prepaid expenses 4,935 162,706
Capitalization of deferred policy acquisition costs (7,398) (8,990)
Other assets 1,935 (853)
Related party assets 484 562
Accounts payable and accrued expenses 74,676 71,599
Policy benefits and losses, claims and loss expenses payable 10,386 9,064
Other policyholders' funds and liabilities 1,187 (1,430)
Deferred income 14,448 11,863
Related party liabilities 2,028 385
Net cash provided by operating activities 651,371 794,213
Cash flow from investing activities:    
Escrow deposits 4,789 1,887
Purchase of:    
Property, plant and equipment (646,137) (508,411)
Short term investments (22,017) (11,810)
Fixed maturity investments (36,488) (281,507)
Equity securities (1,366) 0
Preferred stock 0 (8,000)
Real estate 0 (67)
Mortgage loans (42,561) (42,538)
Proceeds from sale of:    
Property, plant and equipment 159,180 182,146
Short term investments 18,073 12,558
Fixed maturity investments 55,808 126,956
Preferred stock 362 0
Mortgage loans 32,345 5,628
Net cash used by investing activities (478,012) (523,158)
Cash flow from financing activities:    
Borrowings from credit facilities 393,264 161,854
Principal repayments on credit facilities (145,369) (109,334)
Payment of debt issuance costs (1,069) (352)
Capital lease payments (34,982) (45,170)
Common stock dividends paid (9,804) 0
Investment contract deposits 85,767 113,779
Investment contract withdrawals (62,911) (64,332)
Net cash provided by (used in) financing activities 224,896 56,445
Effects on exchange rate on cash (4,121) (1,531)
Increase (decrease) cash and cash equivalents 394,134 325,969
Cash and cash equivalents at the beginning of period 2,704,137 1,194,012
Cash and cash equivalents at the end of the period $ 3,098,271 $ 1,519,981
v3.22.2
Basis of Presentation
 3 Months Ended
Jun. 30, 2022
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 2022 and 2021 correspond to fiscal 2023 and 2022 for AMERCO. Accounts denominated in non-U.S. currencies have been translated into U.S. dollars. The condensed consolidated balance sheet as of June 30, 2022 and the related condensed consolidated statements of operations, comprehensive income (loss), stockholders’ equity and cash flows for the first quarter of fiscal 2023 and 2022 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 the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the fiscal year ended March 31, 2022. 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.
v3.22.2
Investments
 3 Months Ended
Jun. 30, 2022
Investments Debt Equity Securities [Abstract]  
3. Investments 2. 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 $ 23.8 million and $ 27.1 million as of March 31, 2022 and December 31, 2021, respectively. Available-for-Sale Investments Available-for-sale investments as of June 30, 2022 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     (Unaudited)     (In thousands) U.S. treasury securities and government obligations $ 127,940 $   2,947 $   (1,578) $   (2,493) $   – $   126,816 U.S. government agency mortgage-backed securities   37,806   149   (380)   (4,126)   –   33,449 Obligations of states and political subdivisions   166,572   5,830   (1,275)   (2,009)   –   169,118 Corporate securities   1,970,857   38,302   (11,259)   (51,863)   (77)   1,945,960 Mortgage-backed securities   337,023   2,206   (1)   (16,372)   –   322,856   $ 2,640,198 $   49,434 $   ( 14,493 ) $   ( 76,863 ) $   ( 77 ) $   2,598,199   Available-for-sale investments as of March 31, 2022 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 $ 128,078 $   7,984 $   – $   (969) $   – $   135,093 U.S. government agency mortgage-backed securities   44,678   280   (42)   (3,111)   –   41,805 Obligations of states and political subdivisions   178,040   15,450   –   (508)   –   192,982 Corporate securities   1,989,212   138,909   (402)   (6,604)   (60)   2,121,055 Mortgage-backed securities   324,029   7,671   (1)   (1,542)   –   330,157   $ 2,664,037 $   170,294 $   ( 445 ) $   ( 12,734 ) $   ( 60 ) $   2,821,092   We sold available-for-sale securities with a fair value of $ 54.1 million during the first quarter of fiscal 2023 and $ 352.3 million for the full year of fiscal 2022. The gross realized gains on these sales totaled $ 0.3 million during the first quarter of fiscal 2023 and $ 9.5 million for the full year of fiscal 2022.   The gross realized losses on these sales totaled $ 0.1 million during the first quarter of fiscal 2023 and $ 1.4 million for the full year of fiscal 2022. 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 was a $ 17 thousand net impairment charge recorded in the first quarter ended June 30, 2022. The adjusted cost and estimated market value of available-for-sale investments by contractual maturity were as follows:     June 30, 2022   March 31, 2022     Cost Amortized   Market Value Estimated   Cost Amortized   Market Value Estimated     (Unaudited)         (In thousands) Due in one year or less $ 104,389 $ 105,325 $ 97,969 $ 99,432 Due after one year through five years   554,348   557,915   541,840   570,135 Due after five years through ten years   713,435   717,393   704,295   765,073 Due after ten years   931,003   894,710   995,904   1,056,295     2,303,175   2,275,343   2,340,008   2,490,935                   Mortgage-backed securities   337,023   322,856   324,029   330,157   $ 2,640,198 $ 2,598,199 $ 2,664,037 $ 2,821,092 As of June 30, 2022 and March 31, 2022, 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, 2022   March 31, 2022     Cost Amortized   Market Value Estimated   Cost Amortized   Market Value Estimated     (Unaudited)             (In thousands)                   Common stocks $ 28,707 $ 45,837 $ 27,674 $ 46,212 Non-redeemable preferred stocks   26,054   25,950   26,054   26,095   $ 54,761 $ 71,787 $ 53,728 $ 72,307   Investments, other The carrying value of the other investments was as follows:     June 30,   March 31,     2022   2022     (Unaudited)         (In thousands)           Mortgage loans, net $ 433,385 $ 423,163 Short-term investments   34,809   30,916 Real estate   67,539   67,824 Policy loans   10,360   10,309 Other equity investments   11,031   11,543   $ 557,124 $ 543,755
v3.22.2
Borrowings
 3 Months Ended
Jun. 30, 2022
Debt Disclosure [Abstract]  
4. Borrowings 3. Borrowings Long Term Debt Long term debt was as follows:                       June 30,   March 31,   2023 Rates     Maturities   2022   2022                 (Unaudited)                     (In thousands) Real estate loans (amortizing term) 2.27 % - 2.70 %   2023 - 2037 $ 87,147 $   50,259 Senior mortgages 2.70 % - 5.50 %   2023 - 2042   2,322,293   2,206,268 Real estate loans (revolving credit) (a) 2.31 % - 2.56 %   2023 - 2025   535,000   535,000 Fleet loans (amortizing term) 1.61 % - 4.66 %   2022 - 2029   119,576   124,651 Fleet loans (revolving credit) 1.90 % - 2.36 %   2025 - 2027   560,000   560,000 Finance leases (rental equipment) 2.16 % - 5.04 %   2022 - 2026   312,411   347,393 Finance liabilities (rental equipment) 1.60 % - 4.77 %   2024 - 2030   1,051,917   949,936 Private placements 2.43 % - 2.88 %   2029 - 2035   1,200,000   1,200,000 Other obligations 1.50 % - 8.00 %   2022 - 2049   81,008   86,206 Notes, loans and finance leases payable                   6,269,352   6,059,713 Less: Debt issuance costs                     (36,788)   (37,216) Total notes, loans and finance leases payable, net         $ 6,232,564 $   6,022,497       (a) A certain loan has an interest rate swap fixing the rate at 3.14% based on current margins.       Real Estate Backed Loans Real Estate Loans Real Estate and certain of its subsidiaries and U-Haul Company of Florida are borrowers under a real estate loan. This loan requires monthly principal and interest payments, with the unpaid loan balance and accrued and unpaid interest due at maturity. This 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, 2022, the applicable LIBOR was 1.20 % and the applicable margin was 1.50 %, the sum of which was 2.70 %. The default provisions of this 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. Real Estate is a borrower under another real estate loan. This loan requires monthly principal and interest payments, with the unpaid loan balance and accrued and unpaid interest due at maturity. This loan is secured by various properties owned by the borrowers. The interest rate per the provisions of the loan agreement, is the applicable Secured Overnight Funding Rate (“SOFR”) plus the applicable margin. As of June 30, 2022, the applicable SOFR was 1.52 % and applicable margin was 0.75 %, the sum of which was 2.27 %. This loan is hedged with a SOFR interest rate swap fixed at 2.86 %. The interest rate swap is effective July 15, 2022 and expires in July 2032. The default provisions of this real estate loan includes non-payment of principal or interest and other standard reporting and change-in-control covenants.   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 2.70 % and 5.50 %. The weighted average interest rate of these loans as of June 30, 2022 was 4.0 %.   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, 2022, 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, 2022, the applicable LIBOR was between 0.93 % and 1.06 % and the margin was between 1.25 % and 1.50 %, the sum of which was between 2.31 % and 2.56 %. 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. These loan agreements contain fallback language for the replacement of LIBOR. 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, 2022, 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, 2022, the applicable LIBOR was 1.06 % and the margin was 1.38 %, the sum of which was 2.44 %. 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. This loan agreement contains fallback language for the replacement of LIBOR. 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 $ 615.0 million. The aggregate outstanding balance for these revolvers as of June 30, 2022 is $ 560.0 million. The interest rates, per the provision of the loan agreements, in aggregate of $ 415.0 million, are the applicable LIBOR plus the applicable margin. As of June 30, 2022, the applicable LIBOR was 1.06 % and the margin was between 1.15 % and 1.25 %, the sum of which was between 2.21 % and 2.31 %. Of the $ 415.0 million outstanding, $ 100.0 million was fixed with an interest rate of 2.36 %.   The revolving fleet loan with a borrowing capacity of $ 175.0 million uses SOFR, which interest rate was 0.65 % plus a margin of 1.25 %, totaling 1.90 % as of June 30, 2022.   Only interest is paid on the loans until the last nine months of the respective loan terms when principal becomes due monthly. Subsequent to June 30, 2022, the remaining two LIBOR based loans have been amended to use SOFR. Finance Leases The Finance Lease balance represents our sale-leaseback transactions of rental equipment. The agreements are generally seven (7) year terms with interest rates ranging from 2.16 % to 5.04 %.   All of our finance leases are collateralized by our rental fleet. The net book value of the corresponding rental equipment was $ 568.2 million and $ 620.8 million as of June 30, 2022 and March 31, 2022, respectively. There were no new financing leases, as assessed under the new leasing guidance, entered into during the first quarter of fiscal 2023. Finance Liabilities Finance liabilities represent our rental equipment financing transactions, and 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, sale-leasebacks are accounted for as a financial liability and the leased assets are capitalized at cost.   Our finance liabilities have an average term of seven (7) years and interest rates ranging from 1.60% to 4.77%. These finance liabilities are collateralized by the related assets of our rental fleet. The net book value of the corresponding rental equipment was $1,276.0 million and $1,068.3 million as of June 30, 2022 and March 31, 2022, respectively Private Placements In September 2021, AMERCO entered into a note purchase agreement to issue $ 600.0 million of fixed rate senior unsecured notes in a private placement offering.   These notes consist of four tranches each totaling $ 150.0 million and funded in September 2021.   The fixed interest rates range between 2.43 % and 2.78 % with maturities between 2029 and 2033 .   Interest is payable semiannually.   In December 2021, AMERCO entered into a note purchase agreement to issue $ 600.0 million of fixed rate senior unsecured notes in a private placement offering. These notes funded in January 2022. These notes consist of three tranches each totaling $ 100.0 million and two tranches each totaling $ 150.0 million.   The fixed interest rates range between 2.55 % and 2.88 % with maturities between 2030 and 2035 .   Interest is payable semiannually.   Other Obligations In February 2011, AMERCO and U.S. Bank Trust Company, NA, as successor in interest to U.S. Bank National Association (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, 2022, the aggregate outstanding principal balance of the U-Notes ® issued was $ 82.9 million, of which $ 1.9 million is held by our insurance subsidiaries and eliminated in consolidation. Interest rates range between 1.50 % and 8.00 % and maturity dates range between 2022 and 2049 . Oxford is a member of the Federal Home Loan Bank (“FHLB”) and, as such, the FHLB has made deposits with Oxford. As of March 31, 2022, the deposits had an aggregate balance of $ 60.0 million, for which Oxford pays fixed interest rates between 0.49 % and 1.72 % with maturities between September 30, 2022 and September 29, 2025. As of March 31, 2022, available-for-sale investments held with the FHLB totaled $ 97.2 million, of which $ 62.8 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, 2022 for the next five years and thereafter are as follows:     Years Ending June 30,         2023   2024   2025   2026   2027   Thereafter   Total     (Unaudited)     (In thousands) Notes, loans and finance leases payable, secured $ 502,394 $ 1,059,057 $ 648,440 $ 638,221 $ 671,424 $ 2,749,816 $ 6,269,352 Interest on Borrowings Interest Expense Components of interest expense include the following:     Quarter Ended June 30,     2022   2021     (Unaudited)     (In thousands) Interest expense $ 50,405 $ 38,935 Capitalized interest   (2,618)   (2,030) Amortization of transaction costs   1,446   1,286 Interest expense resulting from cash flow hedges   566   987 Total interest expense $ 49,799 $ 39,178   Interest paid in cash, including payments related to derivative contracts, amounted to $42.3 million and $40.9 million for the first quarter of fiscal 2023 and 2022, respectively. Interest Rates Interest rates and Company borrowings related to our revolving credit facilities were as follows:       Revolving Credit Activity       Quarter Ended June 30,       2022   2021       (Unaudited)       (In thousands, except interest rates)   Weighted average interest rate during the quarter   1.99 % 1.39 % Interest rate at the end of the quarter   2.29 % 1.38 % Maximum amount outstanding during the quarter $ 1,095,000 $ 1,088,000   Average amount outstanding during the quarter $ 1,095,000 $ 1,073,055   Facility fees $ 58 $ 71  
v3.22.2
Derivatives
 3 Months Ended
Jun. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
5. Derivatives 4. 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, 2022   March 31, 2022     (Unaudited)         (In thousands) Interest rate contracts designated as hedging instruments:         Assets $ 149 $ – Liabilities   –   587 Notional amount   75,000   235,000         The Effect of Interest Rate Contracts on the Statements of Operations for the Quarters Ended         June 30, 2022   June 30, 2021     (Unaudited)     (In thousands) Gain recognized in AOCI on interest rate contracts $ (736) $ (919) Loss reclassified from AOCI into income $ 566 $ 987   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 2023, 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 2023, we reclassified $0.4 million from accumulated other comprehensive income (loss) (“AOCI”) to interest expense, net of tax. As of June 30, 2022, we expect to reclassify $0.2 million of net losses on interest rate contracts from AOCI to earnings as interest expense over the next twelve months. We use derivatives to hedge our equity market exposure to indexed annuity products sold by our Life Insurance company. These contracts earn a return for the contractholder based on the change in the value of the S&P 500 index between annual index point dates. We buy and sell listed equity and index call options and call option spreads. The credit risk is with the party in which the options are written. The net option price is paid up front and there are no additional cash requirements or additional contingent liabilities. These contracts are held at fair value on our balance sheet. As of March 31, 2022 and December 31, 2021, these derivative hedges had a fair value of $ 7.0 million and $ 7.5 million, with notional amounts of $ 434.0   million and $ 416.7   million, respectively. These derivative instruments are included in Investments, other; on the condensed consolidated balance sheets. The fair values of these call options are determined based on quoted market prices from the relevant exchange and are classified as Level 1 in the fair value hierarchy. Although the call options are employed to be effective hedges against our policyholder obligations from an economic standpoint, they do not meet the requirements for hedge accounting under generally accepted accounting principles (“GAAP”). Accordingly, the changes in fair value of the call options are recognized each reporting date as a component of net investment and interest income. The change in fair value of the call options include the gains or losses recognized at the expiration of the option term and the changes in fair value for open contracts.
v3.22.2
Accumulated Other Comprehensive Income (Loss)
 3 Months Ended
Jun. 30, 2022
Disclosure Text Block [Abstract]  
6. Comprehensive Income (Loss) 5. Accumulated Other Comprehensive Income (Loss) A summary of AOCI components, net of tax, were as follows:     Foreign Currency Translation   Unrealized Net Gains (Losses) on Investments   Fair Market Value of Cash Flow Hedges   Postretirement Benefit Obligation Net Loss   Accumulated Other Comprehensive Income (Loss)     (Unaudited)     (In thousands) Balance as of March 31, 2022 $ (55,757) $   105,027 $   (444) $   (2,442) $   46,384 Foreign currency translation   197   –   –   –   197 Unrealized net losses on investments   –   (136,382)   –   –   (136,382) Change in fair value of cash flow hedges   –   –   128   –   128 Amounts reclassified into earnings on hedging activities   –   –   427   –   427 Other comprehensive income (loss)   197   (136,382)   555   –   (135,630) Balance as of June 30, 2022 $ ( 55,560 ) $   ( 31,355 ) $   111 $   ( 2,442 ) $   (89,246)
v3.22.2
Stockholders' Equity
 3 Months Ended
Jun. 30, 2022
Stockholders' Equity [Abstract]  
7. Stockholders' Equity 6. Stockholders’ Equity The following table lists the dividends that have been declared and issued for fiscal year 2023. Common Stock Dividends Declared Date   Per Share Amount   Record Date   Dividend Date               April 6, 2022 $ 0.50   April 18, 2022   April 29, 2022 As of June 30, 2022, no awards had been issued under the 2016 AMERCO Stock Option Plan.
v3.22.2
Leases
 3 Months Ended
Jun. 30, 2022
Leases [Abstract]  
8. Leases 7. Leases The following tables show the components of our ROU assets, net:     As of June 30, 2022     Finance   Operating   Total     (Unaudited)     (In thousands) Buildings and improvements $ – $ 139,799 $ 139,799 Furniture and equipment   14,731   –   14,731 Rental trailers and other rental equipment   159,618   –   159,618 Rental trucks   1,044,124   –   1,044,124 Right-of-use assets, gross   1,218,473   139,799   1,358,272 Less: Accumulated depreciation   (650,250)   (67,261)   (717,511) Right-of-use assets, net $ 568,223 $ 72,538 $ 640,761       As of March 31, 2022     Finance   Operating   Total     (In thousands) Buildings and improvements $ – $ 136,444 $ 136,444 Furniture and equipment   14,731   –   14,731 Rental trailers and other rental equipment   169,514   –   169,514 Rental trucks   1,114,248   –   1,114,248 Right-of-use assets, gross   1,298,493   136,444   1,434,937 Less: Accumulated depreciation   (677,669)   (62,062)   (739,731) Right-of-use assets, net $ 620,824 $ 74,382 $ 695,206   As of June 30, 2022 and March 31, 2022, we had finance lease liabilities for the ROU assets, net of $ 312.4 million and $ 347.4 million, respectively, and operating lease liabilities of $ 72.3 million and $ 74.2 million, respectively.       Finance leases       June 30,   March 31,       2022   2022       (Unaudited)       Weighted average remaining lease term (years)   3   3   Weighted average discount rate   3.7 % 3.7 %       Operating leases       June 30,   March 31,       2022   2022       (Unaudited)       Weighted average remaining lease term (years)   16.8   16.5   Weighted average discount rate   4.6 % 4.6 %   For the quarters ended June 30, 2022 and 2021, cash paid for leases included in our operating cash flow activities were $ 7.9 million and $ 7.5 million, respectively, and our financing cash flow activities were $ 35.0 million and $ 45.2 million, respectively.   Non-cash activities of ROU assets in exchange for lease liablities were $2.4 million for the first quarter of both fiscal 2023 and 2022. The components of lease costs were as follows:     Three Months Ended     June 30, 2022   June 30, 2021     (Unaudited)     (In thousands)           Operating lease costs $ 7,920 $ 8,077           Finance lease cost:         Amortization of right-of-use assets $ 22,396 $ 32,500 Interest on lease liabilities   3,218   4,571 Total finance lease cost $ 25,614 $ 37,071 Maturities of lease liabilities were as follows:     Finance leases   Operating leases     (Unaudited) Years ending June 30,   (In thousands)           2023 $ 131,322 $ 24,483 2024   97,721   22,162 2025   68,034   7,188 2026   35,396   4,104 2027   –   3,273 Thereafter   –   58,654 Total lease payments   332,473   119,864 Less: imputed interest   (20,062)   (47,587) Present value of lease liabilities $ 312,411 $ 72,277
v3.22.2
Contingencies
 3 Months Ended
Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]  
9. Contingencies 8. Contingencies 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.
v3.22.2
Related Party Transactions
 3 Months Ended
Jun. 30, 2022
Related Party Transactions [Abstract]  
10. Related Party Transactions 9. 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 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. 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, 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,     2022   2021     (Unaudited)     (In thousands) U-Haul management fee revenue from Blackwater $ 7,729 $ 7,180 U-Haul management fee revenue from Mercury   1,410   1,269   $ 9,139 $ 8,449 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 $ 8.2 million and $ 11.3 million from the above-mentioned entities during the first quarter of fiscal 2023 and 2022, respectively. The decrease in management fees received in the first quarter of fiscal 2023 compared with the first quarter of fiscal 2022 was due to a timing difference of the incentive fee of $4.0 million being paid in March of fiscal 2022. 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,     2022   2021     (Unaudited)     (In thousands) U-Haul lease expenses to Blackwater $ 604 $ 626 U-Haul commission expenses to Blackwater   24,882   22,880   $ 25,486 $ 23,506 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, 2022, 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 $ 7.7 million and $ 7.2 million, expenses of $ 0.6 million and $ 0.6 million and cash flows of $ 6.9 million and $ 6.4 million, respectively, during the first quarter of fiscal 2023 and 2022. Revenues were $ 117.9 million and $ 108.6 million and commission expenses were $ 24.9 million and $ 22.9 million, respectively, related to the Dealer Agreements, during the first quarter of fiscal 2023 and 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. Related Party Assets     June 30,   March 31,     2022   2022     (Unaudited)         (In thousands) U-Haul receivable from Blackwater $ 38,624 $ 41,364 U-Haul receivable from Mercury   7,539   5,708 Other (a)   (973)   779   $ 45,190 $ 47,851 (a)       Timing differences for intercompany balances with insurance subsidiaries resulting from the three-month difference in reporting periods.
v3.22.2
Consolidating Financial Information by Industry Segment
 3 Months Ended
Jun. 30, 2022
Segment Reporting [Abstract]  
11. Consolidating Financial Information by Industry Segment 10. 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.
v3.22.2
Industry Segment and Geographic Area Data
 3 Months Ended
Jun. 30, 2022
Segments, Geographical Areas [Abstract]  
12. Industry Segment and Geographic Area Data 11. Industry Segment and Geographic Area Data     United States   Canada   Consolidated     (Unaudited)     (All amounts are in thousands of U.S. $'s) Quarter Ended June 30, 2022             Total revenues $ 1,510,386 $ 87,454 $ 1,597,840 Depreciation and amortization, net of gains on disposal   120,986   2,789   123,775 Interest expense   48,948   851   49,799 Pretax earnings   427,538   13,518   441,056 Income tax expense   103,613   3,441   107,054 Identifiable assets   17,240,646   590,958   17,831,604               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
v3.22.2
Employee Benefit Plans
 3 Months Ended
Jun. 30, 2022
Compensation and Retirement Disclosure [Abstract]  
13. Employee Benefit Plans 12. Employee Benefit Plans The components of the net periodic benefit costs with respect to postretirement benefits were as follows:       Quarter Ended June 30,     2022   2021     (Unaudited)     (In thousands)           Service cost for benefits earned during the period $ 332 $   350 Other components of net periodic benefit costs:         Interest cost on accumulated postretirement benefit   287   227 Other components   17   53 Total other components of net periodic benefit costs   304   280 Net periodic postretirement benefit cost $ 636 $   630
v3.22.2
Fair Value Measurements
 3 Months Ended
Jun. 30, 2022
Fair Value Disclosures [Abstract]  
14. Fair Value Measurements 13. Fair Value Measurements Certain assets and liabilities are recorded at fair value on the condensed 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. 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, 2022   Value   Level 1   Level 2   Level 3   Fair Value     (Unaudited) Assets   (In thousands) Reinsurance recoverables and trade receivables, net $ 219,574 $ – $ – $ 219,574 $ 219,574 Mortgage loans, net   433,385   –   –   433,385   437,604 Other investments   123,739   –   –   123,739   123,739 Total $ 776,698 $ – $ – $ 776,698 $ 780,917                                             Liabilities                     Notes, loans and finance leases payable   6,269,352   –   6,269,352   –   5,973,107 Total $ 6,269,352 $ – $ 6,269,352 $ – $ 5,973,107       Fair Value Hierarchy     Carrying               Total Estimated As of March 31, 2022   Value   Level 1   Level 2   Level 3   Fair Value     (In thousands) Assets                     Reinsurance recoverables and trade receivables, net $ 229,343 $ – $ – $ 229,343 $ 229,343 Mortgage loans, net   423,163   –   –   423,163   450,347 Other investments   120,592   –   –   120,592   120,592 Total $ 773,098 $ – $ – $ 773,098 $ 800,282                                             Liabilities                     Notes, loans and finance leases payable   6,059,713   –   6,059,713   –   5,875,781 Total $ 6,059,713 $ – $ 6,059,713 $ – $ 5,875,781 The following tables represent the financial assets and liabilities on the condensed consolidated balance sheets as of June 30, 2022 and March 31, 2022 that are measured at fair value on a recurring basis and the level within the fair value hierarchy.   As of June 30, 2022   Total   Level 1   Level 2   Level 3     (Unaudited) Assets   (In thousands) Short-term investments $ 2,845,484 $ 2,845,484 $ – $ – Fixed maturities - available for sale   2,598,199   25,456   2,572,651   92 Preferred stock   25,950   25,950   –   – Common stock   45,837   45,837   –   – Derivatives   7,111   6,962   149   – Total $ 5,522,581 $ 2,949,689 $ 2,572,800 $ 92                                     Liabilities                 Derivatives   –   –   –   – Total $ – $ – $ – $ –   As of March 31, 2022   Total   Level 1   Level 2   Level 3     (In thousands) Assets                 Short-term investments $ 2,482,154 $ 2,482,154 $ – $ – Fixed maturities - available for sale   2,821,092   26,914   2,794,086   92 Preferred stock   26,095   26,095   –   – Common stock   46,212   46,212   –   – Derivatives   7,474   7,474   –   – Total $ 5,383,027 $ 2,588,849 $ 2,794,086 $ 92                                     Liabilities                 Derivatives   587   –   587   – Total $ 587 $ – $ 587 $ – The fair value measurements for our assets using significant unobservable inputs (Level 3) were $ 0.1 million for both June 30, 2022 and March 31, 2022.
v3.22.2
Revenue Recognition
 3 Months Ended
Jun. 30, 2022
Revenue From Contract With Customer [Abstract]  
Revenue Recognition 14. 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, 2022 and March 31, 2022. 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. 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. 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. Additionally, in certain contracts the Company has the ability to earn an incentive fee based on operational results. 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 2023 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. 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 with Topic 842 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. Please see Note 7, 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,     2023   2024   2025   2026   2027   Thereafter     (Unaudited)     (In thousands)                           Self-moving equipment rentals $ 7,215 $ – $ – $ – $ – $ – Property lease revenues   17,434   11,177   8,425   6,587   4,946   38,344 Total $ 24,649 $ 11,177 $ 8,425 $ 6,587 $ 4,946 $ 38,344 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. Property and casualty insurance premiums are recognized as revenue over the policy periods. Interest and investment income are recognized as earned. 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. In the following table, revenue is disaggregated by timing of revenue recognition:       Quarter Ended June 30,     2022   2021     (Unaudited)     (In thousands)           Revenues recognized over time: $   103,194 $   79,815 Revenues recognized at a point in time:   126,355   120,718 Total revenues recognized under ASC 606   229,549   200,533           Revenues recognized under ASC 842   1,288,031   1,191,010 Revenues recognized under ASC 944   46,687   46,314 Revenues recognized under ASC 320   33,573   34,999 Total revenues $   1,597,840 $   1,472,856 In the above table, the revenues recognized over time include property management fees, the shipping fees associated with U-Box container 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 revenues, 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.
v3.22.2
Allowance for Credit Losses
 3 Months Ended
Jun. 30, 2022
Allowance For Credit Loss [Abstract]  
Allowance For Credit Losses [Text Block] 15. 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 customer sales and rental of equipment.   For credit card receivables, the Company uses a trailing 13 months average historical chargeback percentage of total credit card receivables to estimate a credit loss reserve. 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% and 6% as of June 30, 2022 and March 31, 2022, respectively. 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, 2022, was $ 2.5 million. Accrued Interest Receivable Accrued interest receivables on available for sale securities totaled $ 29.2 million as of March 31, 2022 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.   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 credit losses are expected to occur, an allowance for expected credit losses based on the fair value of the collateral is recorded. Reinsurance recoverables Reinsurance recoverables on paid and unpaid benefits was less than 1 % of the total assets as of March 31, 2022 which is immaterial based on historical loss experience and high credit rating of the reinsurers. Premium receivables Premium receivables were $1.4 million as of March 31, 2022, 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                   Balance as of March 31, 2022 $ 8,649 $ 60 $ 501 $ 9,210 Allowance change   (6,162)   17   (1)   (6,146) Write-offs against allowance   –   –   –   – Recoveries   –   –   –   – Balance as of June 30, 2022 $ 2,487 $ 77 $ 500 $ 3,064
v3.22.2
Accounting Pronouncements
 3 Months Ended
Jun. 30, 2022
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]  
New Accounting Pronouncements And Changes In Accounting Principles [Text Block] 16.   Accounting Pronouncements 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. 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.
v3.22.2
Investments (Table Text Block)
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Investments Debt Equity Securities [Abstract]    
Available-for-Sale Investments     Amortized   Gross   Gross   Gross   Allowance for Expected Credit Losses   Estimated     (Unaudited)     (In thousands) U.S. treasury securities and government obligations $ 127,940 $   2,947 $   (1,578) $   (2,493) $   – $   126,816 U.S. government agency mortgage-backed securities   37,806   149   (380)   (4,126)   –   33,449 Obligations of states and political subdivisions   166,572   5,830   (1,275)   (2,009)   –   169,118 Corporate securities   1,970,857   38,302   (11,259)   (51,863)   (77)   1,945,960 Mortgage-backed securities   337,023   2,206   (1)   (16,372)   –   322,856  $ 2,640,198 $  49,434 $ ( 14,493 )$ ( 76,863 )$ ( 77 )$  2,598,199     Amortized   Gross   Gross   Gross   Allowance for Expected Credit Losses   Estimated           (In thousands) U.S. treasury securities and government obligations $ 128,078 $   7,984 $   – $   (969) $   – $   135,093 U.S. government agency mortgage-backed securities   44,678   280   (42)   (3,111)   –   41,805 Obligations of states and political subdivisions   178,040   15,450   –   (508)   –   192,982 Corporate securities   1,989,212   138,909   (402)   (6,604)   (60)   2,121,055 Mortgage-backed securities   324,029   7,671   (1)   (1,542)   –   330,157  $ 2,664,037 $  170,294 $ ( 445 )$ ( 12,734 )$ ( 60 )$  2,821,092
Adjusted Cost and Estimated Market Value of Available-for-sale Investments     June 30, 2022   March 31, 2022     Amortized   Estimated   Amortized   Estimated     (Unaudited)         (In thousands) Due in one year or less $ 104,389 $ 105,325 $ 97,969 $ 99,432 Due after one year through five years   554,348   557,915   541,840   570,135 Due after five years through ten years   713,435   717,393   704,295   765,073 Due after ten years   931,003   894,710   995,904   1,056,295     2,303,175   2,275,343   2,340,008   2,490,935                   Mortgage-backed securities   337,023   322,856   324,029   330,157  $ 2,640,198 $ 2,598,199 $ 2,664,037 $ 2,821,092  
Available for sale equity investments     June 30, 2022   March 31, 2022     Amortized   Estimated   Amortized   Estimated     (Unaudited)             (In thousands)                   Common stocks $ 28,707 $ 45,837 $ 27,674 $ 46,212 Non-redeemable preferred stocks   26,054   25,950   26,054   26,095  $ 54,761 $ 71,787 $ 53,728 $ 72,307  
Other investments, carrying value     June 30,   March 31,     2022   2022     (Unaudited)         (In thousands)           Mortgage loans, net $ 433,385 $ 423,163 Short-term investments   34,809   30,916 Real estate   67,539   67,824 Policy loans   10,360   10,309 Other equity investments   11,031   11,543  $ 557,124 $ 543,755  
v3.22.2
Borrowings (Table Text Block)
 3 Months Ended
Jun. 30, 2022
Debt Instruments [Abstract]  
Long-Term Debt                       June 30,   March 31,   2023 Rates     Maturities   2022   2022                 (Unaudited)                     (In thousands) Real estate loans (amortizing term) 2.27 % - 2.70 %   2023 - 2037 $ 87,147 $   50,259 Senior mortgages 2.70 % - 5.50 %   2023 - 2042   2,322,293   2,206,268 Real estate loans (revolving credit) (a) 2.31 % - 2.56 %   2023 - 2025   535,000   535,000 Fleet loans (amortizing term) 1.61 % - 4.66 %   2022 - 2029   119,576   124,651 Fleet loans (revolving credit) 1.90 % - 2.36 %   2025 - 2027   560,000   560,000 Finance leases (rental equipment) 2.16 % - 5.04 %   2022 - 2026   312,411   347,393 Finance liabilities (rental equipment) 1.60 % - 4.77 %   2024 - 2030   1,051,917   949,936 Private placements 2.43 % - 2.88 %   2029 - 2035   1,200,000   1,200,000 Other obligations 1.50 % - 8.00 %   2022 - 2049   81,008   86,206 Notes, loans and finance leases payable                   6,269,352   6,059,713 Less: Debt issuance costs                     (36,788)   (37,216) Total notes, loans and finance leases payable, net         $ 6,232,564 $   6,022,497       (a) A certain loan has an interest rate swap fixing the rate at 3.14% based on current margins.  
Annual Maturities of Notes, Loans and Leases Payable     Years Ending June 30,         2023   2024   2025   2026   2027   Thereafter   Total     (Unaudited)     (In thousands) Notes, loans and finance leases payable, secured$ 502,394 $ 1,059,057 $ 648,440 $ 638,221 $ 671,424 $ 2,749,816 $ 6,269,352
Components of interest expense     Quarter Ended June 30,     2022   2021     (Unaudited)     (In thousands) Interest expense $ 50,405 $ 38,935 Capitalized interest   (2,618)   (2,030) Amortization of transaction costs   1,446   1,286 Interest expense resulting from cash flow hedges   566   987 Total interest expense$ 49,799 $ 39,178
Interest rates and company borrowings     Revolving Credit Activity       Quarter Ended June 30,       2022   2021       (Unaudited)       (In thousands, except interest rates)   Weighted average interest rate during the quarter   1.99 % 1.39 % Interest rate at the end of the quarter   2.29 % 1.38 % Maximum amount outstanding during the quarter $ 1,095,000 $ 1,088,000   Average amount outstanding during the quarter $ 1,095,000 $ 1,073,055   Facility fees$ 58 $ 71  
v3.22.2
Derivatives (Table Text Block)
 3 Months Ended
Jun. 30, 2022
Derivative Instrument Detail [Abstract]  
Derivatives     June 30, 2022   March 31, 2022     (Unaudited)         (In thousands) Interest rate contracts designated as hedging instruments:         Assets $ 149 $ – Liabilities   –   587 Notional amount  75,000   235,000
Derivative Fair Values Located in Accounts Payable and Accrued Expenses in the Balance Sheet     The Effect of Interest Rate Contracts on the Statements of Operations for the Quarters Ended         June 30, 2022   June 30, 2021     (Unaudited)     (In thousands) Gain recognized in AOCI on interest rate contracts $ (736) $ (919) Loss reclassified from AOCI into income$ 566 $ 987
v3.22.2
Accumulated Other Comprehensive Income (loss) (Table Text Block)
 3 Months Ended
Jun. 30, 2022
Table Text Block Supplement [Abstract]  
Summary of accumulated other comprehensive income (loss) components, net of tax     Foreign Currency Translation   Unrealized Net Gains (Losses) on Investments   Fair Market Value of Cash Flow Hedges   Postretirement Benefit Obligation Net Loss   Accumulated Other Comprehensive Income (Loss)     (Unaudited)     (In thousands) Balance as of March 31, 2022 $ (55,757) $   105,027 $   (444) $   (2,442) $   46,384 Foreign currency translation   197   –   –   –   197 Unrealized net losses on investments   –   (136,382)   –   –   (136,382) Change in fair value of cash flow hedges   –   –   128   –   128 Amounts reclassified into earnings on hedging activities   –   –   427   –   427 Other comprehensive income (loss)   197   (136,382)   555   –   (135,630) Balance as of June 30, 2022$( 55,560 )$ ( 31,355 )$  111 $ ( 2,442 )$  (89,246)
v3.22.2
Stockholders' Equity (Table Text Block)
 3 Months Ended
Jun. 30, 2022
Stockholders' Equity [Abstract]  
Common Stock Dividends Common Stock Dividends Declared Date   Per Share Amount   Record Date   Dividend Date               April 6, 2022$ 0.50  April 18, 2022 April 29, 2022
v3.22.2
Leases (Table Text Block)
 3 Months Ended 12 Months Ended
Jun. 30, 2022
Mar. 31, 2022
Leases [Abstract]    
Supplemental Balance Sheet Information Related to Leases     As of June 30, 2022     Finance   Operating   Total     (Unaudited)     (In thousands) Buildings and improvements $ – $ 139,799 $ 139,799 Furniture and equipment   14,731   –   14,731 Rental trailers and other rental equipment   159,618   –   159,618 Rental trucks   1,044,124   –   1,044,124 Right-of-use assets, gross   1,218,473   139,799   1,358,272 Less: Accumulated depreciation   (650,250)   (67,261)   (717,511) Right-of-use assets, net$ 568,223 $ 72,538 $ 640,761     As of March 31, 2022     Finance   Operating   Total     (In thousands) Buildings and improvements $ – $ 136,444 $ 136,444 Furniture and equipment   14,731   –   14,731 Rental trailers and other rental equipment   169,514   –   169,514 Rental trucks   1,114,248   –   1,114,248 Right-of-use assets, gross   1,298,493   136,444   1,434,937 Less: Accumulated depreciation   (677,669)   (62,062)   (739,731) Right-of-use assets, net$ 620,824 $ 74,382 $ 695,206
Summary of Weighted-average remaining lease terms and Discount rates     Finance leases       June 30,   March 31,       2022   2022       (Unaudited)       Weighted average remaining lease term (years)   3   3   Weighted average discount rate  3.7 % 3.7 %     Operating leases       June 30,   March 31,       2022   2022       (Unaudited)       Weighted average remaining lease term (years)   16.8   16.5   Weighted average discount rate  4.6 % 4.6 %
Components of Lease Expense     Three Months Ended     June 30, 2022   June 30, 2021     (Unaudited)     (In thousands)           Operating lease costs $ 7,920 $ 8,077           Finance lease cost:         Amortization of right-of-use assets $ 22,396 $ 32,500 Interest on lease liabilities   3,218   4,571 Total finance lease cost$ 25,614 $ 37,071  
Maturities of Lease Liabilities     Finance leases   Operating leases     (Unaudited) Years ending June 30,   (In thousands)           2023 $ 131,322 $ 24,483 2024   97,721   22,162 2025   68,034   7,188 2026   35,396   4,104 2027   –   3,273 Thereafter   –   58,654 Total lease payments   332,473   119,864 Less: imputed interest   (20,062)   (47,587) Present value of lease liabilities$ 312,411 $ 72,277  
v3.22.2
Related Party Transations (Table Text Block)
 3 Months Ended
Jun. 30, 2022
Related Party Revenue [Abstract]  
Related Party Revenue     Quarter Ended June 30,     2022   2021     (Unaudited)     (In thousands) U-Haul management fee revenue from Blackwater $ 7,729 $ 7,180 U-Haul management fee revenue from Mercury   1,410   1,269  $ 9,139 $ 8,449
Related Party costs and expenses     Quarter Ended June 30,     2022   2021     (Unaudited)     (In thousands) U-Haul lease expenses to Blackwater $ 604 $ 626 U-Haul commission expenses to Blackwater   24,882   22,880  $ 25,486 $ 23,506
Related party assets     June 30,   March 31,     2022   2022     (Unaudited)         (In thousands) U-Haul receivable from Blackwater $ 38,624 $ 41,364 U-Haul receivable from Mercury   7,539   5,708 Other (a)   (973)   779  $ 45,190 $ 47,851
v3.22.2
Consolidating Financial Information By Industry Segment (Table Text Block)
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Table Text Block Supplement [Abstract]    
Consolidated Balance Sheet by Industry Segment Consolidating balance sheets by industry segment as of June 30, 2022 are as follows:       Moving & Storage Consolidated   Property & Casualty Insurance (a)   Life Insurance (a)   Eliminations     AMERCO Consolidated     (Unaudited)     (In thousands) Assets:   Cash and cash equivalents $ 2,982,541 $ 9,065 $ 106,665 $ –   $ 3,098,271 Reinsurance recoverables and trade receivables, net   130,412   52,491   36,671   –     219,574 Inventories and parts, net   164,579   –   –   –     164,579 Prepaid expenses   231,714   –   –   –     231,714 Investments, fixed maturities and marketable equities   –   282,715   2,387,271   –     2,669,986 Investments, other   20,653   116,696   419,775   –     557,124 Deferred policy acquisition costs, net   –   –   129,568   –     129,568 Other assets   50,043   480   2,954   –     53,477 Right of use assets - financing, net   568,223   –   –   –     568,223 Right of use assets - operating, net   71,357   1,101   80   –     72,538 Related party assets   63,718   6,964   15,364   (40,856) (c)   45,190     4,283,240   469,512   3,098,348   (40,856)     7,810,244                         Investment in subsidiaries   606,813   –   –   (606,813) (b)   –                         Property, plant and equipment, at cost:                       Land   1,354,587   –   –   –     1,354,587 Buildings and improvements   6,154,373   –   –   –     6,154,373 Furniture and equipment   858,094   –   –   –     858,094 Rental trailers and other rental equipment   671,880   –   –   –     671,880 Rental trucks   4,873,554   –   –   –     4,873,554     13,912,488   –   –   –     13,912,488 Less:   Accumulated depreciation   (3,891,128)   –   –   –     (3,891,128) Total property, plant and equipment, net   10,021,360   –   –   –     10,021,360 Total assets $ 14,911,413 $ 469,512 $ 3,098,348 $ (647,669)   $ 17,831,604                         (a) Balances as of March 31, 2022                       (b) Eliminate investment in subsidiaries                       (c) Eliminate intercompany receivables and payables                       Consolidating balance sheets by industry segment as of June 30, 2022, continued       Moving & Storage   Property & Casualty Insurance (a)   Life   Eliminations     AMERCO     (Unaudited)     (In thousands) Liabilities:                       Accounts payable and accrued expenses $ 712,167 $ 3,299 $ 7,151 $ –   $ 722,617 Notes, loans and finance leases payable, net   6,232,564   –   –   –     6,232,564 Operating lease liabilities   71,083   1,108   86   –     72,277 Policy benefits and losses, claims and loss expenses payable   427,155   159,142   401,733   –     988,030 Liabilities from investment contracts   –   –   2,374,250   –     2,374,250 Other policyholders' funds and liabilities   –   3,362   8,637   –     11,999 Deferred income   63,647   –   –   –     63,647 Deferred income taxes, net   1,306,768   9,412   (23,811)   –     1,292,369 Related party liabilities   26,918   3,701   12,977   (43,596) (c)   – Total liabilities   8,840,302   180,024   2,781,023   (43,596)     11,757,753                         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)   (91,986)   3,394   (37,490)   36,836 (b)   (89,246) Retained earnings   6,376,221   191,673   326,044   (517,507) (b)   6,376,431 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   6,071,111   289,488   317,325   (604,073)     6,073,851 Total liabilities and stockholders' equity $ 14,911,413 $ 469,512 $ 3,098,348 $ (647,669)   $ 17,831,604                         (a) Balances as of March 31, 2022                       (b) Eliminate investment in subsidiaries                       (c) Eliminate intercompany receivables and payables            Consolidating balance sheets by industry segment as of March 31, 2022 are as follows:       Moving & Storage Consolidated   Property & Casualty Insurance (a)   Life Insurance (a)   Eliminations     AMERCO Consolidated       Assets:   (In thousands) Cash and cash equivalents $   2,643,213 $   10,800 $   50,124 $   –   $   2,704,137 Reinsurance recoverables and trade receivables, net   142,895   50,235   36,213   –     229,343 Inventories and parts, net   158,888   –   –   –     158,888 Prepaid expenses   236,915   –   –   –     236,915 Investments, fixed maturities and marketable equities   –   297,488   2,595,911   –     2,893,399 Investments, other   20,653   114,269   408,833   –     543,755 Deferred policy acquisition costs, net   –   –   103,828   –     103,828 Other assets   57,305   371   2,733   –     60,409 Right of use assets - financing, net   620,824   –   –   –     620,824 Right of use assets - operating, net   74,190   93   99   –     74,382 Related party assets   64,611   6,713   16,911   (40,384) (c)   47,851     4,019,494   479,969   3,214,652   (40,384)     7,673,731                         Investment in subsidiaries   737,073   –   –   (737,073) (b)   –                         Property, plant and equipment, at cost:                       Land   1,283,142   –   –   –     1,283,142 Buildings and improvements   5,974,639   –   –   –     5,974,639 Furniture and equipment   846,132   –   –   –     846,132 Rental trailers and other rental equipment   615,679   –   –   –     615,679 Rental trucks   4,638,814   –   –   –     4,638,814     13,358,406   –   –   –     13,358,406 Less:   Accumulated depreciation   (3,732,556)   –   –   –     (3,732,556) Total property, plant and equipment, net   9,625,850   –   –   –     9,625,850 Total assets $   14,382,417 $   479,969 $   3,214,652 $   (777,457)   $   17,299,581                         (a) Balances as of December 31, 2021                       (b) Eliminate investment in subsidiaries                       (c) Eliminate intercompany receivables and payables                       Consolidating balance sheets by industry segment as of March 31, 2022, continued       Moving & Storage   Property & Casualty Insurance (a)   Life   Eliminations     AMERCO                             (In thousands) Liabilities:                       Accounts payable and accrued expenses $ 663,482 $ 3,849 $ 10,454 $ –   $ 677,785 Notes, loans and finance leases payable, net   6,022,497   –   –   –     6,022,497 Operating lease liabilities   73,998   93   106   –     74,197 Policy benefits and losses, claims and loss expenses payable   418,890   160,379   398,985   –     978,254 Liabilities from investment contracts   –   –   2,336,238   –     2,336,238 Other policyholders' funds and liabilities   –   3,521   7,291   –     10,812 Deferred income   49,157   –   –   –     49,157 Deferred income taxes, net   1,244,639   12,803   7,916   –     1,265,358 Related party liabilities   25,668   3,196   12,717   (41,581) (c)   – Total liabilities   8,498,331   183,841   2,773,707   (41,581)     11,414,298                         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)   45,187   16,630   87,200   (102,633) (b)   46,384 Retained earnings   6,052,023   185,077   324,974   (509,841) (b)   6,052,233 Cost of common shares in treasury, net   (525,653)   –   –   –     (525,653) Cost of preferred shares in treasury, net   (151,997)   –   –   –     (151,997) Total stockholders' equity   5,884,086   296,128   440,945   (735,876)     5,885,283 Total liabilities and stockholders' equity $ 14,382,417 $ 479,969 $ 3,214,652 $ (777,457)   $ 17,299,581                         (a) Balances as of December 31, 2021                       (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, 2022 are as follows:       Moving & Storage   Property & Casualty Insurance (a)   Life   Eliminations     AMERCO     (Unaudited)     (In thousands) Revenues:                       Self-moving equipment rentals $ 1,091,710 $ – $ – $ (935) (c) $ 1,090,775 Self-storage revenues   173,177   –   –   –     173,177 Self-moving and self-storage products and service sales   109,351   –   –   –     109,351 Property management fees   9,139   –   –   –     9,139 Life insurance premiums   –   –   25,781   –     25,781 Property and casualty insurance premiums   –   20,830   –   (858) (c)   19,972 Net investment and interest income   4,940   2,252   27,388   (1,007) (b)   33,573 Other revenue   135,281   –   934   (143) (b)   136,072 Total revenues   1,523,598   23,082   54,103   (2,943)     1,597,840                         Costs and expenses:                       Operating expenses   719,794   10,194   5,109   (1,930) (b,c)   733,167 Commission expenses   118,493   –   –   –     118,493 Cost of sales   79,671   –   –   –     79,671 Benefits and losses   –   4,379   39,721   –     44,100 Amortization of deferred policy acquisition costs   –   –   7,672   –     7,672 Lease expense   7,920   158   28   (631) (b)   7,475 Depreciation, net of gains on disposals   113,796   –   –   –     113,796 Net losses on disposal of real estate   2,307   –   –   –     2,307 Total costs and expenses   1,041,981   14,731   52,530   (2,561)     1,106,681                         Earnings from operations before equity in earnings of subsidiaries   481,617   8,351   1,573   (382)     491,159                         Equity in earnings of subsidiaries   7,666   –   –   (7,666) (d)   –                         Earnings from operations   489,283   8,351   1,573   (8,048)     491,159 Other components of net periodic benefit costs   (304)   –   –   –     (304) Interest expense   (50,061)   –   (120)   382 (b)   (49,799) Pretax earnings   438,918   8,351   1,453   (7,666)     441,056 Income tax expense   (104,916)   (1,755)   (383)   –     (107,054) Earnings available to common stockholders $ 334,002 $ 6,596 $ 1,070 $ (7,666)   $ 334,002                         (a) Balances for the quarter ended March 31, 2022                       (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, 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           
Consolidated Cash Flow Statement by Industry Segment Consolidating cash flow statements by industry segment for the quarter ended June 30, 2022 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 $   334,002 $   6,596 $   1,070 $   (7,666)   $   334,002 Earnings from consolidated entities   (7,666)   –   –   7,666     – Adjustments to reconcile net earnings to the cash provided by operations:                       Depreciation   178,144   –   –   –     178,144 Amortization of deferred policy acquisition costs   –   –   7,672   –     7,672 Amortization of premiums and accretion of discounts related to investments, net   –   421   4,508   –     4,929 Amortization of debt issuance costs   1,473   –   –   –     1,473 Interest credited to policyholders   –   –   15,157   –     15,157 Provision for allowance for losses on trade receivables   (6,075)   (76)   –   –     (6,151) Provision for allowance for inventories and parts reserve   4,646   –   –   –     4,646 Net gains on disposal of personal property   (64,348)   –   –   –     (64,348) Net losses on disposal of real estate   2,307   –   –   –     2,307 Net (gains) losses on sales of investments   –   (31)   299   –     268 Net losses on equity investments   –   1,551   –   –     1,551 Deferred income taxes   61,948   127   1,418   –     63,493 Net change in other operating assets and liabilities:                       Reinsurance recoverables and trade receivables   18,458   (2,107)   (457)   –     15,894 Inventories and parts   (10,347)   –   –   –     (10,347) Prepaid expenses   4,935   –   –   –     4,935 Capitalization of deferred policy acquisition costs   –   –   (7,398)   –     (7,398) Other assets   2,177   (40)   (202)   –     1,935 Related party assets   747   (263)   –   –     484 Accounts payable and accrued expenses   78,549   (549)   (3,324)   –     74,676 Policy benefits and losses, claims and loss expenses payable   8,875   (1,237)   2,748   –     10,386 Other policyholders' funds and liabilities   –   (159)   1,346   –     1,187 Deferred income   14,501   –   (53)   –     14,448 Related party liabilities   1,251   517   260   –     2,028 Net cash provided by operating activities   623,577   4,750   23,044   –     651,371                         Cash flows from investing activities:                       Escrow deposits   4,789   –   –   –     4,789 Purchases of:                       Property, plant and equipment   (646,137)   –   –   –     (646,137) Short term investments   –   (21,966)   (51)   –     (22,017) Fixed maturities investments   –   (9,839)   (26,649)   –     (36,488) Equity securities   –   (1,366)   –   –     (1,366) Preferred stock   –   –   –   –     – Real estate   –   –   –   –     – Mortgage loans   –   (6,975)   (35,586)   –     (42,561) Proceeds from sales and paydowns of:                       Property, plant and equipment   159,180   –   –   –     159,180 Short term investments   –   18,073   –   –     18,073 Fixed maturities investments   –   6,852   48,956   –     55,808 Equity securities   –   362   –   –     362 Mortgage loans   –   8,374   23,971   –     32,345 Net cash (used) provided by investing activities   (482,168)   (6,485)   10,641   –     (478,012)     (page 1 of 2) (a) Balance for the period ended March 31, 2022                       Consolidating cash flow statements by industry segment for the quarter ended June 30, 2022, continued       Moving & Storage   Property &   Life   Elimination     AMERCO     (Unaudited) Cash flows from financing activities:   (In thousands) Borrowings from credit facilities   393,264   –   –   –     393,264 Principal repayments on credit facilities   (145,369)   –   –   –     (145,369) Payments of debt issuance costs   (1,069)   –   –   –     (1,069) Finance lease payments   (34,982)   –   –   –     (34,982) Common stock dividends paid   (9,804)   –   –   –     (9,804) Investment contract deposits   –   –   85,767   –     85,767 Investment contract withdrawals   –   –   (62,911)   –     (62,911) Net cash provided by financing activities   202,040   –   22,856   –     224,896                         Effects of exchange rate on cash   (4,121)   –   –   –     (4,121)                         Increase (decrease) in cash and cash equivalents   339,328   (1,735)   56,541   –     394,134 Cash and cash equivalents at beginning of period   2,643,213   10,800   50,124   –     2,704,137 Cash and cash equivalents at end of period $   2,982,541 $   9,065 $   106,665 $   –   $   3,098,271     (page 2 of 2) (a) Balance for the period ended March 31, 2022            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 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 Provision for allowance for losses on trade receivables   (478)   (5)   (1)   –     (484) Provision for 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) Payment 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           
v3.22.2
Industry Segment and Geographic Area Data (Table Text Block)
 3 Months Ended
Jun. 30, 2022
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, 2022             Total revenues $ 1,510,386 $ 87,454 $ 1,597,840 Depreciation and amortization, net of gains on disposal   120,986   2,789   123,775 Interest expense   48,948   851   49,799 Pretax earnings   427,538   13,518   441,056 Income tax expense   103,613   3,441   107,054 Identifiable assets   17,240,646   590,958   17,831,604               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
v3.22.2
Employee Benefit Plans (Table Text Block)
 3 Months Ended
Jun. 30, 2022
Compensation and Retirement Disclosure [Abstract]  
Components of Net Periodic Post Retirement Benefit Cost     Quarter Ended June 30,     2022   2021     (Unaudited)     (In thousands)           Service cost for benefits earned during the period $ 332 $   350 Other components of net periodic benefit costs:         Interest cost on accumulated postretirement benefit   287   227 Other components   17   53 Total other components of net periodic benefit costs   304   280 Net periodic postretirement benefit cost$ 636 $  630
v3.22.2
Fair Value Measurements (Table Text Block)
 3 Months Ended 12 Months Ended
Jun. 30, 2022
Mar. 31, 2022
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, 2022   Value   Level 1   Level 2   Level 3   Fair Value     (Unaudited) Assets   (In thousands) Reinsurance recoverables and trade receivables, net $ 219,574 $ – $ – $ 219,574 $ 219,574 Mortgage loans, net   433,385   –   –   433,385   437,604 Other investments   123,739   –   –   123,739   123,739 Total $ 776,698 $ – $ – $ 776,698 $ 780,917                                             Liabilities                     Notes, loans and finance leases payable   6,269,352   –   6,269,352   –   5,973,107 Total$ 6,269,352 $ – $ 6,269,352 $ – $ 5,973,107     Fair Value Hierarchy     Carrying               Total Estimated As of March 31, 2022   Value   Level 1   Level 2   Level 3   Fair Value     (In thousands) Assets                     Reinsurance recoverables and trade receivables, net $ 229,343 $ – $ – $ 229,343 $ 229,343 Mortgage loans, net   423,163   –   –   423,163   450,347 Other investments   120,592   –   –   120,592   120,592 Total $ 773,098 $ – $ – $ 773,098 $ 800,282                                             Liabilities                     Notes, loans and finance leases payable   6,059,713   –   6,059,713   –   5,875,781 Total$ 6,059,713 $ – $ 6,059,713 $ – $ 5,875,781
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis As of June 30, 2022   Total   Level 1   Level 2   Level 3     (Unaudited) Assets   (In thousands) Short-term investments $ 2,845,484 $ 2,845,484 $ – $ – Fixed maturities - available for sale   2,598,199   25,456   2,572,651   92 Preferred stock   25,950   25,950   –   – Common stock   45,837   45,837   –   – Derivatives   7,111   6,962   149   – Total $ 5,522,581 $ 2,949,689 $ 2,572,800 $ 92                                     Liabilities                 Derivatives   –   –   –   – Total$ – $ – $ – $ – As of March 31, 2022   Total   Level 1   Level 2   Level 3     (In thousands) Assets                 Short-term investments $ 2,482,154 $ 2,482,154 $ – $ – Fixed maturities - available for sale   2,821,092   26,914   2,794,086   92 Preferred stock   26,095   26,095   –   – Common stock   46,212   46,212   –   – Derivatives   7,474   7,474   –   – Total $ 5,383,027 $ 2,588,849 $ 2,794,086 $ 92                                     Liabilities                 Derivatives   587   –   587   – Total$ 587 $ – $ 587 $ –
v3.22.2
Revenue Recognition (Table Text Block)
 3 Months Ended
Jun. 30, 2022
Revenue From Contract With Customer [Abstract]  
Next five years and thereafter revenue     Years Ending June 30,     2023   2024   2025   2026   2027   Thereafter     (Unaudited)     (In thousands)                           Self-moving equipment rentals $ 7,215 $ – $ – $ – $ – $ – Property lease revenues   17,434   11,177   8,425   6,587   4,946   38,344 Total$ 24,649 $ 11,177 $ 8,425 $ 6,587 $ 4,946 $ 38,344
Disaggregation Of Revenue     Quarter Ended June 30,     2022   2021     (Unaudited)     (In thousands)           Revenues recognized over time: $   103,194 $   79,815 Revenues recognized at a point in time:   126,355   120,718 Total revenues recognized under ASC 606   229,549   200,533           Revenues recognized under ASC 842   1,288,031   1,191,010 Revenues recognized under ASC 944   46,687   46,314 Revenues recognized under ASC 320   33,573   34,999 Total revenues$  1,597,840 $  1,472,856
v3.22.2
Allowance For Credit Losses (Table Text Block)
 3 Months Ended
Jun. 30, 2022
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                   Balance as of March 31, 2022 $ 8,649 $ 60 $ 501 $ 9,210 Allowance change   (6,162)   17   (1)   (6,146) Write-offs against allowance   –   –   –   – Recoveries   –   –   –   – Balance as of June 30, 2022$ 2,487 $ 77 $ 500 $ 3,064
v3.22.2
Basis of Presentation (Narratives) (Details)
 3 Months Ended
Jun. 30, 2022
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]  
Number of reportable segments 3
v3.22.2
Investments (Narratives) (Details) - USD ($)
 3 Months Ended 12 Months Ended
Jun. 30, 2022
Mar. 31, 2022
Insurance Regulatory Authorites:    
Assets held by insurance regulators $ 23,800,000 $ 27,100,000
Available for sale securities:    
Fair value of sold available for sale securites 54,100,000 352,300,000
Available-for-sale securities, gross realized gains 300,000 9,500,000
Available-for-sale securities, gross realized losses 100,000 $ 1,400,000
Other-than-temporary impairments $ 17  
v3.22.2
Investments (Available For Sale Investments) (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Available-for-sale Securities [Abstract]    
Amortized cost $ 2,640,198 $ 2,664,037
Gross Unrealized Gains 49,434 170,294
Gross unrealized losses more than 12 months (14,493) (445)
Gross unrealized losses less than 12 months (76,863) (12,734)
Allowance for Expected Credit Losses (77) (60)
Estimated market value 2,598,199 2,821,092
U.S. treasury securities and government obligations [Member]    
Available-for-sale Securities [Abstract]    
Amortized cost 127,940 128,078
Gross Unrealized Gains 2,947 7,984
Gross unrealized losses more than 12 months (1,578) 0
Gross unrealized losses less than 12 months (2,493) (969)
Allowance for Expected Credit Losses 0 0
Estimated market value 126,816 135,093
U.S. government agency mortgage-backed securities [Member]    
Available-for-sale Securities [Abstract]    
Amortized cost 37,806 44,678
Gross Unrealized Gains 149 280
Gross unrealized losses more than 12 months (380) (42)
Gross unrealized losses less than 12 months (4,126) (3,111)
Allowance for Expected Credit Losses 0 0
Estimated market value 33,449 41,805
Obligations of states and political subdivisions [Member]    
Available-for-sale Securities [Abstract]    
Amortized cost 166,572 178,040
Gross Unrealized Gains 5,830 15,450
Gross unrealized losses more than 12 months (1,275) 0
Gross unrealized losses less than 12 months (2,009) (508)
Allowance for Expected Credit Losses 0 0
Estimated market value 169,118 192,982
Corporate securities [Member]    
Available-for-sale Securities [Abstract]    
Amortized cost 1,970,857 1,989,212
Gross Unrealized Gains 38,302 138,909
Gross unrealized losses more than 12 months (11,259) (402)
Gross unrealized losses less than 12 months (51,863) (6,604)
Allowance for Expected Credit Losses (77) (60)
Estimated market value 1,945,960 2,121,055
Mortgage-backed securities [Member]    
Available-for-sale Securities [Abstract]    
Amortized cost 337,023 324,029
Gross Unrealized Gains 2,206 7,671
Gross unrealized losses more than 12 months (1) (1)
Gross unrealized losses less than 12 months (16,372) (1,542)
Allowance for Expected Credit Losses 0 0
Estimated market value $ 322,856 $ 330,157
v3.22.2
Investments (Adjusted cost and estimated market value of available-for-sale investments) (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Available-for-sale securities, amortized cost:    
Amortized cost $ 2,640,198 $ 2,664,037
Available-for-sale securities, fair value:    
Estimated market value 2,598,199 2,821,092
US Treasury Securities [Member]    
Available-for-sale securities, amortized cost:    
Due in one year or less 104,389 97,969
Due after one year through five years 554,348 541,840
Due after five years through ten years 713,435 704,295
Due after ten years 931,003 995,904
Amortized cost 2,303,175 2,340,008
Available-for-sale securities, fair value:    
Due in one year or less 105,325 99,432
Due after one year through five years 557,915 570,135
Due after five years through ten years 717,393 765,073
Due after ten years 894,710 1,056,295
Estimated market value 2,275,343 2,490,935
Mortgage-backed securities [Member]    
Available-for-sale securities, amortized cost:    
Amortized cost 337,023 324,029
Available-for-sale securities, fair value:    
Estimated market value $ 322,856 $ 330,157
v3.22.2
Investments (Available for sale equity investments) (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Jun. 30, 2021
Marketable Securities [Abstract]    
Amortized cost, equity investments $ 54,761 $ 53,728
Estimated market value, equity investments 71,787 72,307
Common stocks [Member]    
Marketable Securities [Abstract]    
Amortized cost, equity investments 28,707 27,674
Estimated market value, equity investments 45,837 46,212
Non-redeemable preferred stocks [Member]    
Marketable Securities [Abstract]    
Amortized cost, equity investments 26,054 26,054
Estimated market value, equity investments $ 25,950 $ 26,095
v3.22.2
Investments (Carrying value of other investments) (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Business Combination Separately Recognized Transactions Additional Disclosures [Abstract]    
Mortgage loans, net $ 437,604 $ 450,347
Other equity investments 7,000 7,500
Investments other, amount 557,124 543,755
Other Investments [Member]    
Business Combination Separately Recognized Transactions Additional Disclosures [Abstract]    
Mortgage loans, net 433,385 423,163
Short-term investments 34,809 30,916
Real estate, other 67,539 67,824
Policy loans 10,360 10,309
Other equity investments 11,031 11,543
Investments other, amount $ 557,124 $ 543,755
v3.22.2
Borrowings (Narratives) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Mar. 31, 2022
Debt instruments, face, payment, and remaining balance amount:      
Notes, loans and leases payable $ 6,232,564   $ 6,022,497
Debt instruments, issuance and maturity dates:      
Remaining Lease Term Finance Lease Weighted Average 16.8   16.5
Interest paid related to derivative contracts [Abstract]      
Interest paid in cash $ 42,300 $ 40,900  
Rental Truck (amortizing loans) First Loan [Member] | AMERCO [Member]      
Debt instruments, face, payment, and remaining balance amount:      
Capitalized assets, net book value $ 568,200   $ 620,800
Lease Cost [Abstract]      
Sale Leaseback Transaction Lease Terms (7) year terms    
Rental Truck (amortizing loans) First Loan [Member] | AMERCO [Member] | Minimum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 2.16%    
Rental Truck (amortizing loans) First Loan [Member] | AMERCO [Member] | Maximum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 5.04%    
Rental Truck (amortizing loans) second loan [Member] | Uhaul International, Inc [Member]      
Debt instruments, face, payment, and remaining balance amount:      
Capitalized assets, net book value $ 1,276,000   $ 1,068,300
Lease Cost [Abstract]      
Sale Leaseback Transaction Lease Terms seven (7) years    
Rental Truck (amortizing loans) second loan [Member] | Uhaul International, Inc [Member] | Minimum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 1.60%    
Rental Truck (amortizing loans) second loan [Member] | Uhaul International, Inc [Member] | Maximum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 4.77%    
Other Obligations [Member] | AMERCO [Member]      
Debt instruments, face, payment, and remaining balance amount:      
Notes, loans and leases payable $ 82,900    
Subsidiary holdings of parent company debt $ 1,900    
Other Obligations [Member] | AMERCO [Member] | Minimum [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 1.50%    
Debt instruments, issuance and maturity dates:      
Debt instrument, maturity year 2022    
Other Obligations [Member] | AMERCO [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    
Amerco Real Estate Subsidiaries and Uhaul Company of Florida [Member] | Real estate loan [Member]      
Debt instruments, interest rate, stated percentage:      
Debt instrument, interest rate, stated percentage 2.86%    
Debt instruments, interest rate, effective percentage:      
LIBOR 1.20%    
Applicable margin interest rate 1.50%    
Debt instrument, interest rate at period end 1.52%    
Applicable margin, per loan agreement, minimum rate 0.75%    
Applicable margin, per loan agreement, maximum rate 2.27%    
Sum of LIBOR and margin, maximum rate 2.70%    
Amerco Real Estate Company [Member] | AMERCO [Member]      
Debt instruments, interest rate, effective percentage:      
LIBOR 1.06%    
Debt instrument, interest rate at period end 1.38%    
Sum of LIBOR and margin, maximum rate 2.44%    
Unused capacity fee 0.30%    
Debt instruments, face, payment, and remaining balance amount:      
Line of credit facility, maximum borrowing capacity $ 200,000    
Line of credit, current borrowing capacity 300,000    
Line of credit facility, remaining borrowing capacity 150,000    
Amerco Real Estate Company [Member] | Real estate loans (revolving credit) [Member]      
Debt instruments, face, payment, and remaining balance amount:      
Debt instrument, original face amount 385,000    
Line of credit facility, maximum borrowing capacity $ 385,000    
Amerco Real Estate Company [Member] | Real estate loans (revolving credit) [Member] | Minimum [Member]      
Debt instruments, interest rate, effective percentage:      
LIBOR 0.93%    
Debt instrument, interest rate at period end 1.25%    
Sum of LIBOR and margin, maximum rate 2.31%    
Amerco Real Estate Company [Member] | Real estate loans (revolving credit) [Member] | Maximum [Member]      
Debt instruments, interest rate, effective percentage:      
LIBOR 1.06%    
Debt instrument, interest rate at period end 1.50%    
Sum of LIBOR and margin, maximum rate 2.56%    
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Senior Mortgages [Member]      
Debt instruments, interest rate, effective percentage:      
Debt Weighted Average Interest Rate 4.00%    
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 2.70%    
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 5.50%    
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Working capital loans two [Member]      
Debt instruments, interest rate, effective percentage:      
LIBOR 1.06%    
Applicable margin, per loan agreement, minimum rate 1.25%    
Applicable margin, per loan agreement, maximum rate 1.90%    
Debt instruments, face, payment, and remaining balance amount:      
Line of credit facility, maximum borrowing capacity $ 560,000    
Line of credit, current borrowing capacity 415,000    
Amounts held at LIBOR plus margin 415,000    
Amount held at fixed interest rates 100,000    
New capital lease obligiations, amount $ 175,000    
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Working capital loans two [Member] | Minimum [Member]      
Debt instruments, interest rate, effective percentage:      
Debt instrument, interest rate at period end 1.15%    
Sum of LIBOR and margin, maximum rate 2.21%    
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Working capital loans two [Member] | Maximum [Member]      
Debt instruments, interest rate, effective percentage:      
Debt instrument, interest rate at period end 1.25%    
Sum of LIBOR and margin, maximum rate 2.31%    
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Rental Truck (amortizing loans) First Loan [Member]      
Debt instruments, face, payment, and remaining balance amount:      
Debt instrument, face amount $ 615,000    
Life Insurance [Member] | Federal Home Loan Bank [Member]      
Federal Home Loan Bank, Advances, Activity for the year [Abstract]      
Aggregate deposit amount 60,000    
Available for sale equity securities, noncurrent 97,200    
Available for sale equity securities pledged as collateral $ 62,800    
Life Insurance [Member] | Federal Home Loan Bank [Member] | Minimum [Member]      
Federal Home Loan Bank, Advances, Activity for the year [Abstract]      
Deposit interest rate 0.49%    
Life Insurance [Member] | Other Obligations [Member] | Maximum [Member]      
Federal Home Loan Bank, Advances, Activity for the year [Abstract]      
Deposit interest rate 1.72%    
v3.22.2
Borrowings (Long-term Debt Borrowings) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Mar. 31, 2022
Debt instrument, maturities:    
Notes, loans and leases payable, gross $ 5,973,107 $ 5,875,781
Notes, loans and finance/capital leases payable 6,269,352 6,059,713
Less: Debt issuance costs (36,788) (37,216)
Total notes, loans and finance/capital leases payable, net $ 6,232,564 6,022,497
Real estate loan (amortizing term) [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2023  
Debt instrument, maturity year range, end 2037  
Notes, loans and leases payable, gross $ 87,147 50,259
Real estate loan (amortizing term) [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 2.27%  
Real estate loan (amortizing term) [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 2.70%  
Senior Mortgages [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2023  
Debt instrument, maturity year range, end 2042  
Notes, loans and leases payable, gross $ 2,322,293 2,206,268
Senior Mortgages [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 2.70%  
Senior Mortgages [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 5.50%  
Real estate loans (revolving credit) [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2023  
Debt instrument, maturity year range, end 2025  
Notes, loans and leases payable, gross $ 535,000 535,000
Real estate loans (revolving credit) [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 2.31%  
Real estate loans (revolving credit) [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 2.56%  
Fleet loans (amortizing term) [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2022  
Debt instrument, maturity year range, end 2029  
Notes, loans and leases payable, gross $ 119,576 124,651
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 2025  
Debt instrument, maturity year range, end 2027  
Notes, loans and leases payable, gross $ 560,000 560,000
Fleet loans (revolving credit) [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 1.90%  
Fleet loans (revolving credit) [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 2.36%  
Capital Leases (rental equipment) [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2022  
Debt instrument, maturity year range, end 2026  
Notes, loans and leases payable, gross $ 312,411 347,393
Capital Leases (rental equipment) [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 2.16%  
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 2030  
Notes, loans and leases payable, gross $ 1,051,917 949,936
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 4.77%  
Private placements [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2029  
Debt instrument, maturity year range, end 2035  
Notes, loans and leases payable, gross $ 1,200,000 1,200,000
Private placements [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 2.43%  
Private placements [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 2.88%  
Other Obligations [Member]    
Debt instrument, maturities:    
Debt instrument, maturity year range, start 2022  
Debt instrument, maturity year range, end 2049  
Notes, loans and leases payable, gross $ 81,008 $ 86,206
Other Obligations [Member] | Minimum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 1.50%  
Other Obligations [Member] | Maximum [Member]    
Debt instruments, interest rate, stated percentage:    
Debt instrument, interest rate, stated percentage 8.00%  
v3.22.2
Borrowings (Annual Maturities of Notes, Loans and Leases Payable) (Details)
$ in Thousands
Jun. 30, 2022
USD ($)
Long-term debt, by Maturity:  
2022 $ 502,394
2023 1,059,057
2024 648,440
2025 638,221
2026 671,424
Thereafter 2,749,816
Long term debt, amount $ 6,269,352
v3.22.2
Borrowings (Components of Interest Expense) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Interest expense, borrowings:    
Interest expense $ 50,405 $ 38,935
Capitalized interest (2,618) (2,030)
Amortization of transaction costs 1,446 1,286
Interest expense resulting from derivatives 566 987
Total interest expense $ 49,799 $ 39,178
v3.22.2
Borrowings (Interest Rates and Company Borrowings) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Interest and debt expense:    
Weighted average interest rate during the quarter 1.99% 1.39%
Interest rate at quarter end 2.29% 1.38%
Maximum amount outstanding during the quarter $ 1,095,000 $ 1,088,000
Average amount outstanding during the quarter 1,095,000 1,073,055
Facility fees $ 58 $ 71
v3.22.2
Derivatives (Narratives) (Details) - USD ($)
$ in Millions
 3 Months Ended
Jun. 30, 2022
Mar. 31, 2022
Interest Rate Derivatives [Abstract]    
Reclassify net losses on interest rate contracts from AOCI to earnings over the next twelve months $ 0.1  
Other Investments 7.0 $ 7.5
Derivative Asset Notional Amount $ 434.0 $ 416.7
v3.22.2
Derivatives (Interest rate contracts designated as hedging instruments) (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Interest Rate Fair Value Hedges [Abstract]    
Assets $ 149 $ 0
Liabilities 0 587
Notional amount (debt) $ 75,000 $ 235,000
v3.22.2
Derivatives (Effect of Interest Rate Contracts on the Statement of Operations) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
The effect of interest rate contracts on the statement of operations:    
(Gain) loss recognized in AOCI on interest rate contracts (effective portion) $ (736) $ (919)
Loss recognized in income on interest rate contracts $ 566 $ 987
v3.22.2
Accumulated other comprehensive income (loss) components of net of tax (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward]    
Balance as of March 31, 2021 $ 46,384  
Foreign currency translation 197 $ (3,392)
Unrealized net gain on investments (136,382) (73,027)
Change in fair value of cash flow hedges 128 (51)
Amounts reclassified into earnings on hedging activities 427 745
Other comprehensive income (loss) (135,630) (75,725)
Balance as of June 30, 2021 (89,246)  
Foreign Currency Translation [Member]    
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward]    
Balance as of March 31, 2021 (55,757)  
Foreign currency translation 197  
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) 197  
Balance as of June 30, 2021 (55,560)  
Unrealized Net Gain on Investments [Member]    
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward]    
Balance as of March 31, 2021 105,027  
Foreign currency translation 0  
Unrealized net gain on investments (136,382)  
Change in fair value of cash flow hedges 0  
Amounts reclassified into earnings on hedging activities 0  
Other comprehensive income (loss) (136,382)  
Balance as of June 30, 2021 (31,355)  
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 (444)  
Foreign currency translation 0  
Unrealized net gain on investments 0  
Change in fair value of cash flow hedges 128  
Amounts reclassified into earnings on hedging activities 427  
Other comprehensive income (loss) 555  
Balance as of June 30, 2021 111  
Postretirement Benefit Obligation Gain [Member]    
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward]    
Balance as of March 31, 2021 (2,442)  
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 (2,442)  
Accumulated Other Comprehensive Income (Loss) [Member]    
Accumulated Other Comprehensive Income (Loss) Components, Net of Tax [Roll Forward]    
Balance as of March 31, 2021 46,384  
Foreign currency translation 197 (3,392)
Unrealized net gain on investments (136,382) (73,027)
Change in fair value of cash flow hedges 128 (51)
Amounts reclassified into earnings on hedging activities 427 $ 745
Other comprehensive income (loss) (135,630)  
Balance as of June 30, 2021 $ (89,246)  
v3.22.2
Stockholders' Equity (Narratives) (Details)
 3 Months Ended
Jun. 30, 2022
$ / shares
Dividends [Abstract]  
Dividends payable, date declared Apr. 06, 2022
Dividend paid, amount per share $ 0.50
Dividends payable, date of record Apr. 18, 2022
Dividends payable, date to be paid Apr. 29, 2022
v3.22.2
Leases (Narratives) (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Jun. 30, 2022
Mar. 31, 2022
Leases [Abstract]    
Right Of Use Asset Obtained In Exchange For Operating Lease Liability $ 312.4 $ 347.4
Operating Cash Flows For Financing Leases 72.3 74.2
Cash paid for finance leases 7.9 7.5
Cash paid for operating leases $ 35.0 $ 45.2
v3.22.2
Leases (Components of our right-of-use assets) (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Finance Lease [Abstract]    
Buildings and Improvements $ 139,799 $ 136,444
Furniture and equipment 14,731 14,731
Rental trailers and other rental equipment 159,618 169,514
Rental trucks 1,044,124 1,114,248
Right-of-use assets, gross 1,358,272 1,434,937
Less: Accumulated depreciation (717,511) (739,731)
Right of use assets, net 640,761 695,206
Finance Lease [Member]    
Finance Lease [Abstract]    
Buildings and Improvements 0 0
Furniture and equipment 14,731 14,731
Rental trailers and other rental equipment 159,618 169,514
Rental trucks 1,044,124 1,114,248
Right-of-use assets, gross 1,218,473 1,298,493
Less: Accumulated depreciation (650,250) (677,669)
Right of use assets, net 568,223 620,824
Operating Lease [Member]    
Finance Lease [Abstract]    
Buildings and Improvements 139,799 136,444
Furniture and equipment 0 0
Rental trailers and other rental equipment 0 0
Rental trucks 0 0
Right-of-use assets, gross 139,799 136,444
Less: Accumulated depreciation (67,261) (62,062)
Right of use assets, net $ 72,538 $ 74,382
v3.22.2
Leases (Finance Leases Weighted Average Remaining Lease Term and Discount Rate) (Details)
 3 Months Ended 12 Months Ended
Jun. 30, 2022
Mar. 31, 2022
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 3.70% 3.70%
v3.22.2
Leases (Operating Leases Weighted Average Remaining Lease Term and Discount Rate) (Details)
 3 Months Ended 12 Months Ended
Jun. 30, 2022
Mar. 31, 2022
Operating Leases Remaining Lease Term And Weighted Average Discount Rate [Abstract]    
Remaining Lease Term Finance Lease Weighted Average 16.8 16.5
Operating Lease Weighted Average Discount Rate Percent 4.60% 4.60%
v3.22.2
Leases (Components Of Lease Expense) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Lease cost:    
Operating lease costs $ 7,920 $ 8,077
Finance lease cost:    
Amortization of right of use assets 22,396 32,500
Interest on lease liabilities 3,218 4,571
Total finance lease cost $ 25,614 $ 37,071
v3.22.2
Leases (Maturities of lease liabilities) (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Finance Lease Liabilities Payments Due [Abstract]    
2023 $ 131,322  
2024 97,721  
2025 68,034  
2026 35,396  
2027 0  
Thereafter 0  
Total lease payments 332,473  
Less: imputed interest (20,062)  
Present value of finance lease liabilities 312,411  
Operating Lease Liabilities Payments Due [Abstract]    
2023 24,483  
2024 22,162  
2025 7,188  
2026 4,104  
2027 3,273  
Thereafter 58,654  
Total lease payments 119,864  
Less: inputed interest (47,587)  
Present value of operating lease liabilities $ 72,277 $ 74,197
v3.22.2
Related Party Transactions (Narratives) (Details) - USD ($)
$ in Millions
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Sac Holdings [Member]    
Property Management Fee [Abstract]    
Property Management Fee Revenue $ 8.2 $ 11.3
Sac Holdings [Member] | Minimum [Member]    
Property Management Fee [Abstract]    
Management fee rate 4.00%  
Sac Holdings [Member] | Maximum [Member]    
Property Management Fee [Abstract]    
Management fee rate 10.00%  
Sac Holdings, Mercury, Four Sac, Five Sac, Galaxy and Private Mini [Member]    
Related party costs and expenses:    
Revenue, excluding dealer agreement commissions and expenses $ 7.7 7.2
Expenses, related parties 0.6 0.6
Cash flow, related party 6.9 6.4
Revenue generated by the dealer agreement from related parties 117.9 108.6
Commission expenses, generated from dealer agreement with related parties $ 24.9 $ 22.9
v3.22.2
Related Party Transactions (Related Party Revenue) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Related party transactions:    
Management fee revenue $ 9,139 $ 8,449
Revenue from related parties 9,139 8,449
Blackwater [Member]    
Related party transactions:    
Management fee revenue 7,729 7,180
Mercury [Member]    
Related party transactions:    
Management fee revenue $ 1,410 $ 1,269
v3.22.2
Related Party Transactions (Related Party Costs and Expenses) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Related party cost and expense:    
Related party expenses, total $ 25,486 $ 23,506
Blackwater [Member]    
Related party cost and expense:    
U-Haul lease expenses 604 626
U-Haul commission expenses $ 24,882 $ 22,880
v3.22.2
Related Party Transactions (Related Party Assets) (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Related party assets:    
Amounts due to related parties $ (973) $ 779
Related party assets 45,190 47,851
Blackwater [Member]    
Related party assets:    
Notes receivable 38,624 41,364
Mercury [Member]    
Related party assets:    
Notes receivable $ 7,539 $ 5,708
v3.22.2
Consolidating financial information by industry segment (Balance Sheets) (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2021
Mar. 31, 2021
ASSETS:        
Cash and cash equivalents $ 3,098,271 $ 2,704,137 $ 1,519,981 $ 1,194,012
Reinsurance recoverables and trade receivables, net 219,574 229,343    
Inventories, net 164,579 158,888    
Prepaid expenses 231,714 236,915    
Investments, fixed maturities and marketable equities 2,669,986 2,893,399    
Investments, other 557,124 543,755    
Deferred policy acquisition costs, net 129,568 103,828    
Other assets 53,477 60,409    
Right of use Assets - Financing 568,223 620,824    
Right of use Assets - Operating 72,538 74,382    
Related party assets 45,190 47,851    
Subtotal assets 7,810,244 7,673,731    
Investments in subsidiaries 0 0    
Property, plant and equipment, at cost:        
Land 1,354,587 1,283,142    
Buildings and improvements 6,154,373 5,974,639    
Furniture and equipment 858,094 846,132    
Property, plant and equipment (gross) 13,912,488 13,358,406    
Less: Accumulated depreciation (3,891,128) (3,732,556)    
Total property, plant and equipment 10,021,360 9,625,850    
Total assets 17,831,604 17,299,581 15,114,882  
Liabilities:        
Accounts payable and accrued expenses 722,617 677,785    
Notes, loans and leases payable 6,232,564 6,022,497    
Financing lease liability 312,411      
Operating lease liability 72,277 74,197    
Policy benefits and losses, claims and loss expenses payable 988,030 978,254    
Liabilities from investment contracts 2,374,250 2,336,238    
Other policyholders' funds and liabilities 11,999 10,812    
Deferred income 63,647 49,157    
Deferred income taxes, net 1,292,369 1,265,358    
Related party liabilities 0 0    
Total liabilities 11,757,753 11,414,298    
Stockholders' equity:        
Additional paid-in capital 453,819 453,819    
Accumulated other comprehensive loss (89,246) 46,384    
Retained earnings 6,376,431 6,052,233    
Total stockholders' equity 6,073,851 5,885,283    
Total liabilities and stockholders' equity 17,831,604 17,299,581    
Rental Trailers and Other Rental Equipment [Member]        
Property, plant and equipment, at cost:        
Property subject to or available for operating lease, gross 671,880 615,679    
Rental Trucks [Member]        
Property, plant and equipment, at cost:        
Property subject to or available for operating lease, gross 4,873,554 4,638,814    
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 2,982,541 2,643,213 1,455,973 1,010,275
Reinsurance recoverables and trade receivables, net 130,412 142,895    
Inventories, net 164,579 158,888    
Prepaid expenses 231,714 236,915    
Investments, fixed maturities and marketable equities 0 0    
Investments, other 20,653 20,653    
Deferred policy acquisition costs, net 0 0    
Other assets 50,043 57,305    
Right of use Assets - Financing 568,223 620,824    
Right of use Assets - Operating 71,357 74,190    
Related party assets 63,718 64,611    
Subtotal assets 4,283,240 4,019,494    
Investments in subsidiaries 606,813 737,073    
Property, plant and equipment, at cost:        
Land 1,354,587 1,283,142    
Buildings and improvements 6,154,373 5,974,639    
Furniture and equipment 858,094 846,132    
Property, plant and equipment (gross) 13,912,488 13,358,406    
Less: Accumulated depreciation (3,891,128) (3,732,556)    
Total property, plant and equipment 10,021,360 9,625,850    
Total assets 14,911,413 14,382,417    
Liabilities:        
Accounts payable and accrued expenses 712,167 663,482    
Notes, loans and leases payable 6,232,564 6,022,497    
Operating lease liability 71,083 73,998    
Policy benefits and losses, claims and loss expenses payable 427,155 418,890    
Liabilities from investment contracts 0 0    
Other policyholders' funds and liabilities 0 0    
Deferred income 63,647 49,157    
Deferred income taxes, net 1,306,768 1,244,639    
Related party liabilities 26,918 25,668    
Total liabilities 8,840,302 8,498,331    
Stockholders' equity:        
Additional paid-in capital 454,029 454,029    
Accumulated other comprehensive loss (91,986) 45,187    
Retained earnings 6,376,221 6,052,023    
Total stockholders' equity 6,071,111 5,884,086    
Total liabilities and stockholders' equity 14,911,413 14,382,417    
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 671,880 615,679    
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 4,873,554 4,638,814    
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 9,065 10,800 3,246 5,658
Reinsurance recoverables and trade receivables, net 52,491 50,235    
Inventories, net 0 0    
Prepaid expenses 0 0    
Investments, fixed maturities and marketable equities 282,715 297,488    
Investments, other 116,696 114,269    
Deferred policy acquisition costs, net 0 0    
Other assets 480 371    
Right of use Assets - Financing 0 0    
Right of use Assets - Operating 1,101 93    
Related party assets 6,964 6,713    
Subtotal assets 469,512 479,969    
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 469,512 479,969    
Liabilities:        
Accounts payable and accrued expenses 3,299 3,849    
Notes, loans and leases payable 0 0    
Operating lease liability 1,108 93    
Policy benefits and losses, claims and loss expenses payable 159,142 160,379    
Liabilities from investment contracts 0 0    
Other policyholders' funds and liabilities 3,362 3,521    
Deferred income 0 0    
Deferred income taxes, net 9,412 12,803    
Related party liabilities 3,701 3,196    
Total liabilities 180,024 183,841    
Stockholders' equity:        
Additional paid-in capital 91,120 91,120    
Accumulated other comprehensive loss 3,394 16,630    
Retained earnings 191,673 185,077    
Total stockholders' equity 289,488 296,128    
Total liabilities and stockholders' equity 469,512 479,969    
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 106,665 50,124 60,762 178,079
Reinsurance recoverables and trade receivables, net 36,671 36,213    
Inventories, net 0 0    
Prepaid expenses 0 0    
Investments, fixed maturities and marketable equities 2,387,271 2,595,911    
Investments, other 419,775 408,833    
Deferred policy acquisition costs, net 129,568 103,828    
Other assets 2,954 2,733    
Right of use Assets - Financing 0 0    
Right of use Assets - Operating 80 99    
Related party assets 15,364 16,911    
Subtotal assets 3,098,348 3,214,652    
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 3,098,348 3,214,652    
Liabilities:        
Accounts payable and accrued expenses 7,151 10,454    
Notes, loans and leases payable 0 0    
Operating lease liability 86 106    
Policy benefits and losses, claims and loss expenses payable 401,733 398,985    
Liabilities from investment contracts 2,374,250 2,336,238    
Other policyholders' funds and liabilities 8,637 7,291    
Deferred income 0 0    
Deferred income taxes, net (23,811) 7,916    
Related party liabilities 12,977 12,717    
Total liabilities 2,781,023 2,773,707    
Stockholders' equity:        
Additional paid-in capital 26,271 26,271    
Accumulated other comprehensive loss (37,490) 87,200    
Retained earnings 326,044 324,974    
Total stockholders' equity 317,325 440,945    
Total liabilities and stockholders' equity 3,098,348 3,214,652    
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 (40,856) (40,384)    
Subtotal assets (40,856) (40,384)    
Investments in subsidiaries (606,813) (737,073)    
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 (647,669) (777,457)    
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 (43,596) (41,581)    
Total liabilities (43,596) (41,581)    
Stockholders' equity:        
Additional paid-in capital (117,601) (117,601)    
Accumulated other comprehensive loss 36,836 (102,633)    
Retained earnings (517,507) (509,841)    
Total stockholders' equity (604,073) (735,876)    
Total liabilities and stockholders' equity (647,669) (777,457)    
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    
v3.22.2
Consolidating financial information by industry segment (Statements of Operations) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Revenues:    
Self-moving equipment rentals $ 1,090,775 $ 1,035,377
Self-storage revenues 173,177 137,393
Self moving and self-storage products and service sales 109,351 104,885
Property management fees 9,139 8,449
Life insurance premiums 25,781 28,705
Property and casualty insurance premiums 19,972 16,869
Investment income interest and dividend 33,573 34,999
Other revenue 136,072 106,179
Total revenues 1,597,840 1,472,856
Costs and expenses:    
Operating expenses 733,167 614,529
Commission expenses 118,493 113,149
Cost of sales 79,671 69,915
Benefits and losses 44,100 47,298
Amortization of deferred policy acquisition costs 7,672 8,823
Lease expense 7,475 7,647
Depreciation, net of (gains) losses on disposals 113,796 121,717
Net (gains) losses on disposal of real estate 2,307 (4,430)
Total costs and expenses 1,106,681 978,648
Earnings (loss) from operations before equity in earnings of subsidiaries 491,159 494,208
Equity in earnings of subsidiaries 0 0
Earnings from operations 491,159 494,208
Other components of net periodic benefit costs (304) (280)
Interest expense (49,799) (39,178)
Pretax earnings 441,056 454,750
Income tax expense (107,054) (109,575)
Earnings available to common stockholders 334,002 345,175
Operating Segments [Member] | Moving and Storage Consolidations [Member]    
Revenues:    
Self-moving equipment rentals 1,091,710 1,036,213
Self-storage revenues 173,177 137,393
Self moving and self-storage products and service sales 109,351 104,885
Property management fees 9,139 8,449
Life insurance premiums 0 0
Property and casualty insurance premiums 0 0
Investment income interest and dividend 4,940 680
Other revenue 135,281 105,634
Total revenues 1,523,598 1,393,254
Costs and expenses:    
Operating expenses 719,794 601,831
Commission expenses 118,493 113,149
Cost of sales 79,671 69,915
Benefits and losses 0 0
Amortization of deferred policy acquisition costs 0 0
Lease expense 7,920 8,077
Depreciation, net of (gains) losses on disposals 113,796 121,717
Net (gains) losses on disposal of real estate 2,307 (4,430)
Total costs and expenses 1,041,981 910,259
Earnings (loss) from operations before equity in earnings of subsidiaries 481,617 482,995
Equity in earnings of subsidiaries 7,666 9,119
Earnings from operations 489,283 492,114
Other components of net periodic benefit costs (304) (280)
Interest expense (50,061) (39,443)
Pretax earnings 438,918 452,391
Income tax expense (104,916) (107,216)
Earnings available to common stockholders 334,002 345,175
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 20,830 17,443
Investment income interest and dividend 2,252 6,013
Other revenue 0 0
Total revenues 23,082 23,456
Costs and expenses:    
Operating expenses 10,194 8,813
Commission expenses 0 0
Cost of sales 0 0
Benefits and losses 4,379 5,227
Amortization of deferred policy acquisition costs 0 0
Lease expense 158 184
Depreciation, net of (gains) losses on disposals 0 0
Net (gains) losses on disposal of real estate 0 0
Total costs and expenses 14,731 14,224
Earnings (loss) from operations before equity in earnings of subsidiaries 8,351 9,232
Equity in earnings of subsidiaries 0 0
Earnings from operations 8,351 9,232
Other components of net periodic benefit costs 0 0
Interest expense 0 0
Pretax earnings 8,351 9,232
Income tax expense (1,755) (1,930)
Earnings available to common stockholders 6,596 7,302
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 25,781 28,705
Property and casualty insurance premiums 0 0
Investment income interest and dividend 27,388 29,324
Other revenue 934 630
Total revenues 54,103 58,659
Costs and expenses:    
Operating expenses 5,109 5,375
Commission expenses 0 0
Cost of sales 0 0
Benefits and losses 39,721 42,071
Amortization of deferred policy acquisition costs 7,672 8,823
Lease expense 28 24
Depreciation, net of (gains) losses on disposals 0 0
Net (gains) losses on disposal of real estate 0 0
Total costs and expenses 52,530 56,293
Earnings (loss) from operations before equity in earnings of subsidiaries 1,573 2,366
Equity in earnings of subsidiaries 0 0
Earnings from operations 1,573 2,366
Other components of net periodic benefit costs 0 0
Interest expense (120) (120)
Pretax earnings 1,453 2,246
Income tax expense (383) (429)
Earnings available to common stockholders 1,070 1,817
Consolidation, Eliminations [Member]    
Revenues:    
Self-moving equipment rentals (935) (836)
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 (858) (574)
Investment income interest and dividend (1,007) (1,018)
Other revenue (143) (85)
Total revenues (2,943) (2,513)
Costs and expenses:    
Operating expenses (1,930) (1,490)
Commission expenses 0 0
Cost of sales 0 0
Benefits and losses 0 0
Amortization of deferred policy acquisition costs 0 0
Lease expense (631) (638)
Depreciation, net of (gains) losses on disposals 0 0
Net (gains) losses on disposal of real estate 0 0
Total costs and expenses (2,561) (2,128)
Earnings (loss) from operations before equity in earnings of subsidiaries (382) (385)
Equity in earnings of subsidiaries (7,666) (9,119)
Earnings from operations (8,048) (9,504)
Other components of net periodic benefit costs 0 0
Interest expense 382 385
Pretax earnings (7,666) (9,119)
Income tax expense 0 0
Earnings available to common stockholders $ (7,666) $ (9,119)
v3.22.2
Consolidating financial information by industry segment (Cash Flow Statements) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Cash flow from operating activities:    
Net earnings $ 334,002 $ 345,175
Earnings from consolidated entities 0 0
Adjustments to reconcile net earnings to cash provided by operations:    
Depreciation 178,144 172,040
Amortization of deferred policy acquisition costs 7,672 8,823
Amortization of premiums and accretion of discounts related to investments, inc 4,929 4,361
Amortization of debt issuance costs 1,473 1,332
Interest credited to policyholders 15,157 15,583
Change in allowance for losses on trade receivables (6,151) (484)
Change in allowance for inventory reserves 4,646 3,403
Net gain on sale of real and personal property (64,348) (50,323)
Net losses on disposal of real estate 2,307 (4,430)
Net (gain) loss on sale of investments 268 (2,469)
Net (gain) losses equity investments 1,551 (2,231)
Deferred income tax 63,493 82,374
Net change in other operating assets and liabilities:    
Reinsurance recoverables and trade receivables 15,894 (8,082)
Inventories (10,347) (15,765)
Prepaid expenses 4,935 162,706
Capitalization of deferred policy acquisition costs (7,398) (8,990)
Other assets 1,935 (853)
Related party assets 484 562
Accounts payable and accrued expenses 74,676 71,599
Policy benefits and losses, claims and loss expenses payable 10,386 9,064
Other policyholders' funds and liabilities 1,187 (1,430)
Deferred income 14,448 11,863
Related party liabilities 2,028 385
Net cash provided by operating activities 651,371 794,213
Cash flow from investing activities:    
Escrow deposits 4,789 1,887
Purchase of:    
Property, plant and equipment (646,137) (508,411)
Short term investments (22,017) (11,810)
Fixed maturity investments (36,488) (281,507)
Equity securities (1,366) 0
Preferred stock 0 (8,000)
Real estate 0 (67)
Mortgage loans (42,561) (42,538)
Proceeds from sale of:    
Property, plant and equipment 159,180 182,146
Short term investments 18,073 12,558
Fixed maturity investments 55,808 126,956
Preferred stock 362 0
Mortgage loans 32,345 5,628
Net cash used by investing activities (478,012) (523,158)
Cash flow from financing activities:    
Borrowings from credit facilities 393,264 161,854
Principal repayments on credit facilities (145,369) (109,334)
Payment of debt issuance costs (1,069) (352)
Capital lease payments (34,982) (45,170)
Common stock dividends paid (9,804) 0
Investment contract deposits 85,767 113,779
Investment contract withdrawals (62,911) (64,332)
Net cash provided by (used in) financing activities 224,896 56,445
Effects on exchange rate on cash (4,121) (1,531)
Increase (decrease) cash and cash equivalents 394,134 325,969
Cash and cash equivalents at the beginning of period 2,704,137 1,194,012
Cash and cash equivalents at the end of the period 3,098,271 1,519,981
Operating Segments [Member] | Moving and Storage Consolidations [Member]    
Cash flow from operating activities:    
Net earnings 334,002 345,175
Earnings from consolidated entities (7,666) (9,119)
Adjustments to reconcile net earnings to cash provided by operations:    
Depreciation 178,144 172,040
Amortization of deferred policy acquisition costs 0 0
Amortization of premiums and accretion of discounts related to investments, inc 0 0
Amortization of debt issuance costs 1,473 1,332
Interest credited to policyholders 0 0
Change in allowance for losses on trade receivables (6,075) (478)
Change in allowance for inventory reserves 4,646 3,403
Net gain on sale of real and personal property (64,348) (50,323)
Net losses on disposal of real estate 2,307 (4,430)
Net (gain) loss on sale of investments 0 0
Net (gain) losses equity investments 0 0
Deferred income tax 61,948 81,341
Net change in other operating assets and liabilities:    
Reinsurance recoverables and trade receivables 18,458 (1,658)
Inventories (10,347) (15,765)
Prepaid expenses 4,935 162,706
Capitalization of deferred policy acquisition costs 0 0
Other assets 2,177 (436)
Related party assets 747 302
Accounts payable and accrued expenses 78,549 60,902
Policy benefits and losses, claims and loss expenses payable 8,875 5,942
Other policyholders' funds and liabilities 0 0
Deferred income 14,501 12,125
Related party liabilities 1,251 1,422
Net cash provided by operating activities 623,577 764,481
Cash flow from investing activities:    
Escrow deposits 4,789 1,887
Purchase of:    
Property, plant and equipment (646,137) (508,411)
Short term investments 0 0
Fixed maturity investments 0 0
Equity securities 0  
Preferred stock 0 0
Real estate 0 0
Mortgage loans 0 0
Proceeds from sale of:    
Property, plant and equipment 159,180 182,146
Short term investments 0 0
Fixed maturity investments 0 0
Preferred stock 0  
Mortgage loans 0 0
Net cash used by investing activities (482,168) (324,378)
Cash flow from financing activities:    
Borrowings from credit facilities 393,264 161,854
Principal repayments on credit facilities (145,369) (109,206)
Payment of debt issuance costs (1,069) (352)
Capital lease payments (34,982) (45,170)
Common stock dividends paid (9,804)  
Investment contract deposits 0 0
Investment contract withdrawals 0 0
Net cash provided by (used in) financing activities 202,040 7,126
Effects on exchange rate on cash (4,121) (1,531)
Increase (decrease) cash and cash equivalents 339,328 445,698
Cash and cash equivalents at the beginning of period 2,643,213 1,010,275
Cash and cash equivalents at the end of the period 2,982,541 1,455,973
Operating Segments [Member] | Property and Casualty Insurance [Member]    
Cash flow from operating activities:    
Net earnings 6,596 7,302
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, inc 421 413
Amortization of debt issuance costs 0 0
Interest credited to policyholders 0 0
Change in allowance for losses on trade receivables (76) (5)
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 (31) (37)
Net (gain) losses equity investments 1,551 (2,231)
Deferred income tax 127 604
Net change in other operating assets and liabilities:    
Reinsurance recoverables and trade receivables (2,107) (520)
Inventories 0 0
Prepaid expenses 0 0
Capitalization of deferred policy acquisition costs 0 0
Other assets (40) (323)
Related party assets (263) 260
Accounts payable and accrued expenses (549) 225
Policy benefits and losses, claims and loss expenses payable (1,237) 352
Other policyholders' funds and liabilities (159) (461)
Deferred income 0 0
Related party liabilities 517 (1,972)
Net cash provided by operating activities 4,750 3,607
Cash flow from investing activities:    
Escrow deposits 0 0
Purchase of:    
Property, plant and equipment 0 0
Short term investments (21,966) (11,680)
Fixed maturity investments (9,839) (7,466)
Equity securities (1,366)  
Preferred stock 0 0
Real estate 0 0
Mortgage loans (6,975) (4,850)
Proceeds from sale of:    
Property, plant and equipment 0 0
Short term investments 18,073 12,558
Fixed maturity investments 6,852 5,136
Preferred stock 362  
Mortgage loans 8,374 283
Net cash used by investing activities (6,485) (6,019)
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
Common stock dividends paid 0  
Investment contract deposits 0 0
Investment contract withdrawals 0 0
Net cash provided by (used in) financing activities 0 0
Effects on exchange rate on cash 0 0
Increase (decrease) cash and cash equivalents (1,735) (2,412)
Cash and cash equivalents at the beginning of period 10,800 5,658
Cash and cash equivalents at the end of the period 9,065 3,246
Operating Segments [Member] | Life Insurance [Member]    
Cash flow from operating activities:    
Net earnings 1,070 1,817
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 7,672 8,823
Amortization of premiums and accretion of discounts related to investments, inc 4,508 3,948
Amortization of debt issuance costs 0 0
Interest credited to policyholders 15,157 15,583
Change in allowance for losses on trade receivables 0 (1)
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 299 (2,432)
Net (gain) losses equity investments 0 0
Deferred income tax 1,418 429
Net change in other operating assets and liabilities:    
Reinsurance recoverables and trade receivables (457) (5,904)
Inventories 0 0
Prepaid expenses 0 0
Capitalization of deferred policy acquisition costs (7,398) (8,990)
Other assets (202) (94)
Related party assets 0 0
Accounts payable and accrued expenses (3,324) 10,472
Policy benefits and losses, claims and loss expenses payable 2,748 2,770
Other policyholders' funds and liabilities 1,346 (969)
Deferred income (53) (262)
Related party liabilities 260 935
Net cash provided by operating activities 23,044 26,125
Cash flow from investing activities:    
Escrow deposits 0 0
Purchase of:    
Property, plant and equipment 0 0
Short term investments (51) (130)
Fixed maturity investments (26,649) (274,041)
Equity securities 0  
Preferred stock 0 (8,000)
Real estate 0 (67)
Mortgage loans (35,586) (37,688)
Proceeds from sale of:    
Property, plant and equipment 0 0
Short term investments 0 0
Fixed maturity investments 48,956 121,820
Preferred stock 0  
Mortgage loans 23,971 5,345
Net cash used by investing activities 10,641 (192,761)
Cash flow from financing activities:    
Borrowings from credit facilities 0 0
Principal repayments on credit facilities 0 (128)
Payment of debt issuance costs 0 0
Capital lease payments 0 0
Common stock dividends paid 0  
Investment contract deposits 85,767 113,779
Investment contract withdrawals (62,911) (64,332)
Net cash provided by (used in) financing activities 22,856 49,319
Effects on exchange rate on cash 0 0
Increase (decrease) cash and cash equivalents 56,541 (117,317)
Cash and cash equivalents at the beginning of period 50,124 178,079
Cash and cash equivalents at the end of the period 106,665 60,762
Consolidation, Eliminations [Member]    
Cash flow from operating activities:    
Net earnings (7,666) (9,119)
Earnings from consolidated entities 7,666 9,119
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, inc 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 (gain) losses 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
Equity securities 0  
Preferred stock 0 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
Preferred stock 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
Common stock dividends paid 0  
Investment contract deposits 0 0
Investment contract withdrawals 0 0
Net cash provided by (used in) financing activities 0 0
Effects on exchange rate on cash 0 0
Increase (decrease) 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
v3.22.2
Industry Segment and Geographic Area Data (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Mar. 31, 2022
Quarter ended:      
Total revenues $ 1,597,840 $ 1,472,856  
Depreciation and amortization, net of (gains) losses on disposals 123,775 126,110  
Interest expense 49,799 39,178  
Pretax earnings (loss) 441,056 454,750  
Income tax expense 107,054 109,575  
Identifiable assets 17,831,604 15,114,882 $ 17,299,581
United States [Member]      
Quarter ended:      
Total revenues 1,510,386 1,396,361  
Depreciation and amortization, net of (gains) losses on disposals 120,986 127,650  
Interest expense 48,948 38,128  
Pretax earnings (loss) 427,538 437,949  
Income tax expense 103,613 105,302  
Identifiable assets 17,240,646 14,661,722  
Canada [Member]      
Quarter ended:      
Total revenues 87,454 76,495  
Depreciation and amortization, net of (gains) losses on disposals 2,789 (1,540)  
Interest expense 851 1,050  
Pretax earnings (loss) 13,518 16,801  
Income tax expense 3,441 4,273  
Identifiable assets $ 590,958 $ 453,160  
v3.22.2
Employee Benefit Plans (Components of net periodic benefit costs post retirement benefits) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Postemployment Benefits [Abstract]    
Service cost for benefits earned during the period $ 332 $ 350
Other components of net periodic benefit costs:    
Interest cost on accumulated postretirement benefit 287 227
Other components 17 53
Total other components of net periodic benefit costs 304 280
Net periodic postretirement benefit cost $ 636 $ 630
v3.22.2
Fair Value Measurements (Narratives) (Details)
$ in Millions
 3 Months Ended
Jun. 30, 2022
USD ($)
Fair Value Disclosures [Abstract]  
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales $ 0.1
v3.22.2
Fair Value Measurements (Carrying and Estimated Fair Values within Fair Value Hierarchy) (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Assets    
Reinsurance recoverables and trade receivables, net $ 219,574 $ 229,343
Mortgage loans, net 437,604 450,347
Other investments 123,739 120,592
Total 780,917 800,282
Liabilities    
Notes, loans and leases payable, gross 5,973,107 5,875,781
Total 5,973,107 5,875,781
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 6,269,352 6,059,713
Total 6,269,352 6,059,713
Level 3 [Member]    
Assets    
Reinsurance recoverables and trade receivables, net 219,574 229,343
Mortgage loans, net 433,385 423,163
Other investments 123,739 120,592
Total 776,698 773,098
Liabilities    
Notes, loans and leases payable, gross 0 0
Total 0 0
Carrying Value [Member]    
Assets    
Reinsurance recoverables and trade receivables, net 219,574 229,343
Mortgage loans, net 433,385 423,163
Other investments 123,739 120,592
Total 776,698 773,098
Liabilities    
Notes, loans and leases payable, gross 6,269,352 6,059,713
Total $ 6,269,352 $ 6,059,713
v3.22.2
Fair Value Measurements (Financial instruments level within the fair value hierarchy) (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Mar. 31, 2022
Assets:    
Short-term investments $ 2,845,484 $ 2,482,154
Fixed maturities - available for sale 2,598,199 2,821,092
Preferred stock 25,950 26,095
Common stock 45,837 46,212
Derivatives 7,111 7,474
Total 5,522,581 5,383,027
Liabilities:    
Derivatives 0 587
Total 0 587
Level 1 [Member]    
Assets:    
Short-term investments 2,845,484 2,482,154
Fixed maturities - available for sale 25,456 26,914
Preferred stock 25,950 26,095
Common stock 45,837 46,212
Derivatives 6,962 7,474
Total 2,949,689 2,588,849
Liabilities:    
Derivatives 0 0
Total 0 0
Level 2 [Member]    
Assets:    
Short-term investments 0 0
Fixed maturities - available for sale 2,572,651 2,794,086
Preferred stock 0 0
Common stock 0 0
Derivatives 149 0
Total 2,572,800 2,794,086
Liabilities:    
Derivatives 0 587
Total 0 587
Level 3 [Member]    
Assets:    
Short-term investments 0 0
Fixed maturities - available for sale 92 92
Preferred stock 0 0
Common stock 0 0
Derivatives 0 0
Total 92 92
Liabilities:    
Derivatives 0 0
Total $ 0 $ 0
v3.22.2
Revenue Recognition (Revenue disaggregated by timing of revenue recognition) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Revenue From Contract With Customer [Abstract]    
Revenues Recognized Over Time $ 103,194 $ 79,815
Revenues recognized at a point in time 126,355 120,718
Total revenues recognized under ASC 606 229,549 200,533
Revenues recognized under ASC 840 1,288,031 1,191,010
Revenues recognized under ASC 944 46,687 46,314
Revenues recognized under ASC 320 33,573 34,999
Total revenues $ 1,597,840 $ 1,472,856
v3.22.2
Revenue Recognition (Revenue over time) (Details)
$ in Thousands
Mar. 31, 2022
USD ($)
Contract With Customer Liability [Abstract]  
2020 $ 24,649
2021 11,177
2022 8,425
2023 6,587
2024 4,946
Thereafter 38,344
Self Moving Equipment [Member]  
Contract With Customer Liability [Abstract]  
2020 7,215
2021 0
2022 0
2023 0
2024 0
Thereafter 0
Property Lease Revenue [Member]  
Contract With Customer Liability [Abstract]  
2020 17,434
2021 11,177
2022 8,425
2023 6,587
2024 4,946
Thereafter $ 38,344
v3.22.2
Allowance For Credit Losses (Narratives) (Details)
$ in Millions
 3 Months Ended
Jun. 30, 2022
USD ($)
Receivables [Abstract]  
Trade receivable components 2
Allowance for expected credit losses $ 2.5
Available for sale securities, accrued interest receivable $ 29.2
Financing Receivable Allowance For Credit Loss Additional Information [Abstract]  
Reinsurance paid percentage of total assets 1.00%
Premiums Receivable Gross $ 1.4
Credit card receivables  
Receivables [Abstract]  
Average Historical Chargeback Term For credit card receivables, the Company uses a trailing 13 months average historical chargeback percentage of total credit card receivables to estimate a credit loss reserve. The Company rents equipment to corporate customers in which payment terms are 30 days.
Commercial Real Estate Portfolio Segment [Member]  
Financing Receivable Allowance For Credit Loss Additional Information [Abstract]  
Modeling of mortgage loans Loans that management has the intent and ability to hold for the foreseeable future, or until maturity or payoff, are reported at amortized cost.   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.
v3.22.2
Allowance For Credit Losses (Reserve Allowance For Various Credit Loss) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Valuation And Qualifying Accounts [Abstract]    
March 31, 2021 $ 9,210 $ 4,656
Transition adjustment current expected credit losses (6,146) (566)
Write-offs against allowance 0 0
Recoveries 0 0
June 30, 2021 3,064 4,090
Trade Receivables    
Valuation And Qualifying Accounts [Abstract]    
March 31, 2021 8,649 2,835
Transition adjustment current expected credit losses (6,162) (291)
Write-offs against allowance 0 0
Recoveries 0 0
June 30, 2021 2,487 2,544
Investments, Fixed Maturities    
Valuation And Qualifying Accounts [Abstract]    
March 31, 2021 60 1,320
Transition adjustment current expected credit losses 17 (279)
Write-offs against allowance 0 0
Recoveries 0 0
June 30, 2021 77 1,041
Investments, Other    
Valuation And Qualifying Accounts [Abstract]    
March 31, 2021 501 501
Transition adjustment current expected credit losses (1) 4
Write-offs against allowance 0 0
Recoveries 0 0
June 30, 2021 $ 500 $ 505