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v3.20.1

Borrowings (Narratives) (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019
Debt instruments, face, payment, and remaining balance amount: |  |  |
Notes, loans and leases payable | $ 4,621,291 |  | $ 4,163,323
Debt instruments, issuance and maturity dates: |  |  |
Remaining Lease Term Fianance Lease Weighted Average | 4 Years |  |
Real estate loan (amortizing term) [Member] | Minimum [Member] |  |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity year | 2020 |  |
Real estate loan (amortizing term) [Member] | Maximum [Member] |  |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity year | 2036 |  |
Real estate loans (revolving credit) [Member] | Amerco [Member] |  |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Line of credit facility, maximum borrowing capacity | $ 385,000 |  |
Real estate loans (revolving credit) [Member] | Amerco [Member] | Minimum [Member] |  |  |
Debt instruments, interest rate, effective percentage: |  |  |
LIBOR | 1.58% |  |
Applicable margin interest rate | 1.25% |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity year | 2022 |  |
Real estate loans (revolving credit) [Member] | Amerco [Member] | Maximum [Member] |  |  |
Debt instruments, interest rate, effective percentage: |  |  |
LIBOR | 1.60% |  |
Applicable margin interest rate | 1.40% |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity year | 2025 |  |
Real estate loans two (revolving credit) [Member] | Amerco [Member] |  |  |
Debt instruments, interest rate, effective percentage: |  |  |
LIBOR | 1.60% |  |
Applicable margin interest rate | 1.38% |  |
Sum of LIBOR and margin, maximum rate | 2.98% |  |
Applicable margin, per loan agreement, maximum rate | 2.25% |  |
Unused capacity fee | 0.30% |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Line of credit facility, maximum borrowing capacity | $ 300,000 |  |
Line of credit facility, remaining borrowing capacity | 150,000 |  |
Notes, loans and leases payable | 150,000 |  |
Amount held at fixed interest rate | $ 200,000 |  |
Rental Truck (securitizations) [Member] | Amerco [Member] | Minimum [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage | 1.92% |  |
Rental Truck (securitizations) [Member] | Amerco [Member] | Maximum [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage | 5.04% |  |
Capital Lease Obligations [Member] | Amerco [Member] | Minimum [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage | 2.63% |  |
Capital Lease Obligations [Member] | Amerco [Member] | Maximum [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage | 4.22% |  |
Amerco Real Estate Subsidiaries and Uhaul Company of Florida [Member] | Real estate loan (amortizing term) [Member] |  |  |
Debt instruments, interest rate, effective percentage: |  |  |
LIBOR | 0.86% |  |
Applicable margin interest rate | 1.50% |  |
Sum of LIBOR and margin, maximum rate | 2.36% |  |
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 | 3.11% |  |
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Senior mortgages [Member] | Maximum [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage | 6.62% |  |
Uhaul Intl and Subsidiaries [Member] | Rental Truck (amortizing loans) First Loan [Member] | Amerco [Member] | Minimum [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage | 1.95% |  |
Uhaul Intl and Subsidiaries [Member] | Rental Truck (amortizing loans) First Loan [Member] | Amerco [Member] | Maximum [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage | 4.66% |  |
Uhaul Intl and Subsidiaries [Member] | Rental Truck Revolvers [Member] |  |  |
Debt instruments, interest rate, effective percentage: |  |  |
Applicable margin interest rate | 1.15% |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Line of credit facility, maximum borrowing capacity | $ 590,000 |  |
Uhaul Intl and Subsidiaries [Member] | Rental Truck Revolvers [Member] | Minimum [Member] |  |  |
Debt instruments, interest rate, effective percentage: |  |  |
LIBOR | 1.58% |  |
Uhaul Intl and Subsidiaries [Member] | Rental Truck Revolvers [Member] | Maximum [Member] |  |  |
Debt instruments, interest rate, effective percentage: |  |  |
LIBOR | 1.60% |  |
Amerco, Us Bank, National Association, Trustee [Member] | Other Obligations [Member] | Amerco [Member] |  |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Notes, loans and leases payable | $ 87,300 |  |
Subsidiary holdings of parent company debt | $ 2,800 |  |
Amerco, Us Bank, National Association, Trustee [Member] | Other Obligations [Member] | Amerco [Member] | Minimum [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage | 2.50% |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity year | 2020 |  |
Amerco, Us Bank, National Association, Trustee [Member] | 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 |  |
Life Insurance [Member] | FHLB [Member] |  |  |
Federal Home Loan Bank, Advances, Activity for the year [Abstract] |  |  |
Deposit amount |  | $ 60,000 |
Available for sale equity securities, noncurrent |  | 117,900 |
Available for sale equity securities pledged as collateral |  | $ 67,600 |
Life Insurance [Member] | FHLB [Member] | Minimum [Member] |  |  |
Federal Home Loan Bank, Advances, Activity for the year [Abstract] |  |  |
Deposit interest rate |  | 1.72% |
Life Insurance [Member] | FHLB [Member] | Maximum [Member] |  |  |
Federal Home Loan Bank, Advances, Activity for the year [Abstract] |  |  |
Deposit interest rate |  | 2.95% |

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