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v3.23.3

Borrowings (Narratives) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Mar. 31, 2023 | Mar. 31, 2022
Debt instruments, face, payment, and remaining balance amount: |  |  |  |  |  |
Notes, loans and leases payable | $ 6,400,899 |  | $ 6,400,899 |  | $ 6,108,042 |
Debt instruments, issuance and maturity dates: |  |  |  |  |  |
Remaining Lease Term Finance Lease Weighted Average | 2 |  |  |  | 2 |
Interest paid related to derivative contracts [Abstract] |  |  |  |  |  |
Interest paid in cash | $ 74,200 | $ 63,100 | 129,700 | $ 104,800 |  |
Federal Home Loan Bank, Advances, Activity for the year [Abstract] |  |  |  |  |  |
Aggregate deposit amount | $ 1,300 | 0 | $ 1,300 | $ 0 | $ 2,300 | $ 600
Real estate loan [Member] |  |  |  |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Debt Weighted Average Interest Rate | 5.89% |  | 5.89% |  |  |
Senior Mortgages [Member] |  |  |  |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Debt Weighted Average Interest Rate | 4.18% |  | 4.18% |  |  |
Real estate loans (revolving credit) [Member] |  |  |  |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Debt Weighted Average Interest Rate | 0.00% |  | 0.00% |  |  |
Rental Truck (amortizing loans) First Loan [Member] |  |  |  |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Debt Weighted Average Interest Rate | 3.76% |  | 3.76% |  |  |
Finance Lease [Member] |  |  |  |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Debt Weighted Average Interest Rate | 4.38% |  | 4.38% |  |  |
Capital Lease Obligations [Member] |  |  |  |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Debt Weighted Average Interest Rate | 4.00% |  | 4.00% |  |  |
Private Placement |  |  |  |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Debt Weighted Average Interest Rate | 2.65% |  | 2.65% |  |  |
Other Obligations [Member] |  |  |  |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Debt Weighted Average Interest Rate | 6.10% |  | 6.10% |  |  |
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 | 5.33% |  | 5.33% |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate | 4.30% |  | 4.30% |  |  |
LIBOR - highest rate | 0.10% |  | 0.10% |  |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |  |  |  |
Debt instrument, face amount | $ 81,600 |  | $ 81,600 |  |  |
Debt instrument, original face amount | $ 202,100 |  | $ 202,100 |  |  |
Amerco Real Estate Subsidiaries and Uhaul Company of Florida [Member] | Real estate loan [Member] | Minimum [Member] |  |  |  |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Applicable margin interest rate | 0.65% |  | 0.65% |  |  |
Debt instrument, interest rate at period end | 6.08% |  |  |  |  |
Amerco Real Estate Subsidiaries and Uhaul Company of Florida [Member] | Real estate loan [Member] | Maximum [Member] |  |  |  |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Applicable margin interest rate | 1.38% |  | 1.38% |  |  |
Debt instrument, interest rate at period end | 6.80% |  |  |  |  |
Amerco Real Estate Company [Member] | Real estate loans (revolving credit) [Member] |  |  |  |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate | 5.33% |  | 5.33% |  |  |
LIBOR - highest rate | 1.55% |  | 1.55% |  |  |
Applicable margin interest rate | 6.88% |  | 6.88% |  |  |
Unused capacity fee | 0.30% |  |  |  |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity | $ 465,000 |  | $ 465,000 |  |  |
Amerco Real Estate Company [Member] | Private Placement |  |  |  |  |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |  |  |  |
Debt instrument, face amount | 600,000 |  | 600,000 |  |  |
Debt instrument, original face amount | $ 150,000 |  | $ 150,000 |  |  |
Amerco Real Estate Company [Member] | Private Placement | Minimum [Member] |  |  |  |  |  |
Debt instruments, interest rate, stated percentage: |  |  |  |  |  |
Debt instrument, interest rate, stated percentage | 2.43% |  | 2.43% |  |  |
Debt instruments, issuance and maturity dates: |  |  |  |  |  |
Debt instrument, maturity year | 2029 |  |  |  |  |
Amerco Real Estate Company [Member] | Private Placement | Maximum [Member] |  |  |  |  |  |
Debt instruments, interest rate, stated percentage: |  |  |  |  |  |
Debt instrument, interest rate, stated percentage | 2.78% |  | 2.78% |  |  |
Debt instruments, issuance and maturity dates: |  |  |  |  |  |
Debt instrument, maturity year | 2033 |  |  |  |  |
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: |  |  |  |  |  |
Capitalized assets, net book value | $ 202,600 |  | $ 202,600 |  | 213,100 |
Uhaul Intl and Subsidiaries [Member] | Rental Truck Revolvers [Member] |  |  |  |  |  |
Debt instruments, interest rate, stated percentage: |  |  |  |  |  |
Debt instrument, interest rate, stated percentage | 0.10% |  | 0.10% |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Applicable margin, per loan agreement, maximum rate | 2.36% |  | 2.36% |  |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |  |  |  |
Debt instrument, face amount | $ 615,000 |  | $ 615,000 |  |  |
Line of credit facility, maximum borrowing capacity | 593,900 |  | 593,900 |  |  |
Line of credit, current borrowing capacity | 88,900 |  | 88,900 |  |  |
Capitalized assets, net book value | $ 772,300 |  | $ 772,300 |  | 822,000 |
Uhaul Intl and Subsidiaries [Member] | Rental Truck Revolvers [Member] | Minimum [Member] |  |  |  |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Applicable margin interest rate | 5.31% |  | 5.31% |  |  |
Debt instrument, interest rate at period end | 1.15% |  |  |  |  |
Sum of LIBOR and margin, maximum rate | 6.56% |  | 6.56% |  |  |
Uhaul Intl and Subsidiaries [Member] | Rental Truck Revolvers [Member] | Maximum [Member] |  |  |  |  |  |
Debt instruments, interest rate, effective percentage: |  |  |  |  |  |
Applicable margin interest rate | 5.33% |  | 5.33% |  |  |
Debt instrument, interest rate at period end | 1.25% |  |  |  |  |
Sum of LIBOR and margin, maximum rate | 6.68% |  | 6.68% |  |  |
Uhaul Intl and Subsidiaries [Member] | Finance Lease [Member] |  |  |  |  |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |  |  |  |
Capitalized assets, net book value | $ 377,700 |  | $ 377,700 |  | 474,800 |
Lease Cost [Abstract] |  |  |  |  |  |
Sale Leaseback Transaction Lease Terms | seven (7) year terms |  |  |  |  |
Uhaul Intl and Subsidiaries [Member] | Capital Lease Obligations [Member] |  |  |  |  |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |  |  |  |
Capitalized assets, net book value | $ 1,815,200 |  | 1,815,200 |  | $ 1,499,100 |
Lease Cost [Abstract] |  |  |  |  |  |
Sale Leaseback Transaction Lease Terms | seven (7) years |  |  |  |  |
Uhaul Intl and Subsidiaries [Member] | Other Obligations [Member] |  |  |  |  |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity | $ 600,000 |  | 600,000 |  |  |
Line of credit, current borrowing capacity | 100,000 |  | 100,000 |  |  |
Line of credit facility, remaining borrowing capacity | $ 150,000 |  | $ 150,000 |  |  |
Uhaul Intl and Subsidiaries [Member] | Other Obligations [Member] | Minimum [Member] |  |  |  |  |  |
Debt instruments, interest rate, stated percentage: |  |  |  |  |  |
Debt instrument, interest rate, stated percentage | 2.55% |  | 2.55% |  |  |
Debt instruments, issuance and maturity dates: |  |  |  |  |  |
Debt instrument, maturity year | 2030 |  |  |  |  |
Uhaul Intl and Subsidiaries [Member] | Other Obligations [Member] | Maximum [Member] |  |  |  |  |  |
Debt instruments, interest rate, stated percentage: |  |  |  |  |  |
Debt instrument, interest rate, stated percentage | 2.88% |  | 2.88% |  |  |
Debt instruments, issuance and maturity dates: |  |  |  |  |  |
Debt instrument, maturity year | 2035 |  |  |  |  |
Life Insurance [Member] | Other Obligations [Member] |  |  |  |  |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |  |  |  |
New capital lease obligiations, amount | $ 75,400 | $ 1,700 |  |  |  |

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- Definition A description of the terms of the lease(s) related to the assets being leased-back in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 840 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481295/840-40-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -SubTopic 40 -Topic 842 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479741/842-40-50-2 + Details
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