XML 53 R141.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Long-term Debt Borrowings, Textuals (Details) (USD $) | 12 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014 | Mar. 31, 2013
Debt instruments, face, payment, and remaining balance amount: |  |  |
Notes, loans and leases payable | $ 2,190,869,000 us-gaap_DebtAndCapitalLeaseObligations | $ 1,942,359,000 us-gaap_DebtAndCapitalLeaseObligations |
Write-off of transaction costs related to early extinguishment of debt | 298,000 us-gaap_WriteOffOfDeferredDebtIssuanceCost |  |
Fees on early extinguishment of debt | 3,783,000 uhal_FeesOnEarlyExtinguishmentOfDebt |  |
Amerco Real Estate Subsidiaries and Uhaul Company of Florida [Member] | Mortgages [Member] | Uhaul Guarantor [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage | 6.93%us-gaap_DebtInstrumentInterestRateStatedPercentage / dei_LegalEntityAxis = uhal_UhaulGuarantorMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoRealEstateSubsidiariesAndUhaulCompanyOfFloridaMember |  |
Debt instruments, interest rate, effective percentage: |  |  |
LIBOR | 0.18%us-gaap_LongTermDebtPercentageBearingVariableInterestRate / dei_LegalEntityAxis = uhal_UhaulGuarantorMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoRealEstateSubsidiariesAndUhaulCompanyOfFloridaMember |  |
Applicable margin interest rate | 1.50%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = uhal_UhaulGuarantorMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoRealEstateSubsidiariesAndUhaulCompanyOfFloridaMember |  |
Debt instrument, interest rate at period end | 1.68%us-gaap_DebtInstrumentInterestRateAtPeriodEnd / dei_LegalEntityAxis = uhal_UhaulGuarantorMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoRealEstateSubsidiariesAndUhaulCompanyOfFloridaMember |  |
Sum of LIBOR and margin, maximum rate | 1.50%uhal_ApplicableMarginsHighRate / dei_LegalEntityAxis = uhal_UhaulGuarantorMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoRealEstateSubsidiariesAndUhaulCompanyOfFloridaMember |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Amounts held at LIBOR plus margin | 25,000,000 us-gaap_OtherBorrowings / dei_LegalEntityAxis = uhal_UhaulGuarantorMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoRealEstateSubsidiariesAndUhaulCompanyOfFloridaMember |  |
Amounts held at fixed rate | 215,000,000 us-gaap_SecuredDebt / dei_LegalEntityAxis = uhal_UhaulGuarantorMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoRealEstateSubsidiariesAndUhaulCompanyOfFloridaMember |  |
Notes, loans and leases payable | 240,000,000 us-gaap_DebtAndCapitalLeaseObligations / dei_LegalEntityAxis = uhal_UhaulGuarantorMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgagesMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoRealEstateSubsidiariesAndUhaulCompanyOfFloridaMember |  |
Debt instruments, issuance and maturity dates: |  |  |
Mortgage loans on real estate, final maturity date | Apr. 10, 2023 |  |
Derivative, Maturity Date | Aug. 10, 2018 |  |
Amerco Real Estate, Uhaul Company Of Florida [Member] | Line of Credit [Member] | U-Haul Int'l and Amerco Guarantor [Member] |  |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Line of credit facility, maximum borrowing capacity | 50,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoRealEstateUhaulCompanyFloridaMember |  |
Line of credit facility, remaining borrowing capacity | 50,000,000 us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LineOfCreditMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoRealEstateUhaulCompanyFloridaMember |  |
Debt instruments, issuance and maturity dates: |  |  |
Mortgage loans on real estate, final maturity date | Apr. 30, 2015 |  |
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Senior Mortgages One [Member] | Amerco Real Estate and U-Haul Int'l Guarantor [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage rate range, minimum | 4.22%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instrument, interest rate, stated percentage rate range, maximum | 5.75%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instruments, interest rate, effective percentage: |  |  |
LIBOR | 0.17%us-gaap_LongTermDebtPercentageBearingVariableInterestRate / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
LIBOR - highest rate | 0.18%uhal_HighLiborRate / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Applicable margin, per loan agreement, minimum rate | 2.00%uhal_ApplicableMarginPerLoanAgreementMinimumRate / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Applicable margin, per loan agreement, maximum rate | 2.50%uhal_ApplicableMarginPerLoanAgreementMaximumRate / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Sum of LIBOR and margin, minimum rate | 2.17%uhal_ApplicableMarginsLowRate / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Sum of LIBOR and margin, maximum rate | 2.68%uhal_ApplicableMarginsHighRate / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Amounts held at LIBOR plus margin | 142,600,000 us-gaap_OtherBorrowings / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Notes, loans and leases payable | 717,500,000 us-gaap_DebtAndCapitalLeaseObligations / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Early extinguishment of senior mortgage | 127,000,000 us-gaap_ExtinguishmentOfDebtAmount / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Write-off of transaction costs related to early extinguishment of debt | 300,000 us-gaap_WriteOffOfDeferredDebtIssuanceCost / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Fees on early extinguishment of debt | 3,800,000 uhal_FeesOnEarlyExtinguishmentOfDebt / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_MortgageLoansOnRealEstateMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity date range, start | Jul. 01, 2015 |  |
Debt instrument, maturity date range, end | Oct. 11, 2038 |  |
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Senior Mortgages Two [Member] | Amerco Real Estate and U-Haul Int'l Guarantor [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage rate range, minimum | 5.52%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LoansPayableMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instrument, interest rate, stated percentage rate range, maximum | 5.68%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LoansPayableMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Early extinguishment of senior mortgage | 245,900,000 us-gaap_ExtinguishmentOfDebtAmount / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = us-gaap_LoansPayableMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instruments, issuance and maturity dates: |  |  |
Mortgage loans on real estate, final maturity date | Jul. 01, 2015 |  |
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Senior Mortgages Three [Member] | Amerco Real Estate and U-Haul Int'l Guarantor [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage rate range, minimum | 2.17%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = uhal_SeniorMortgagesThreeMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instrument, interest rate, stated percentage rate range, maximum | 4.81%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = uhal_SeniorMortgagesThreeMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Debt instrument, original face amount | 448,000,000 uhal_DebtInstrumentOriginalFaceAmount / dei_LegalEntityAxis = uhal_AmercoRealEstateAndUhaulIntlMember / us-gaap_LongtermDebtTypeAxis = uhal_SeniorMortgagesThreeMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity date range, start | Apr. 29, 2017 |  |
Debt instrument, maturity date range, end | Sep. 06, 2034 |  |
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Revolving Fleet Loan One [Member] |  |  |
Debt instruments, interest rate, effective percentage: |  |  |
LIBOR | 0.17%us-gaap_LongTermDebtPercentageBearingVariableInterestRate / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanOneMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Applicable margin interest rate | 1.75%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanOneMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instrument, interest rate at period end | 1.92%us-gaap_DebtInstrumentInterestRateAtPeriodEnd / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanOneMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Debt instrument, original face amount | 75,000,000 uhal_DebtInstrumentOriginalFaceAmount / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanOneMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Line of credit facility, maximum borrowing capacity | 225,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanOneMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Notes, loans and leases payable | 65,000,000 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanOneMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity date | Oct. 31, 2018 |  |
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Revolving Fleet Loan Two [Member] |  |  |
Debt instruments, interest rate, effective percentage: |  |  |
LIBOR | 0.17%us-gaap_LongTermDebtPercentageBearingVariableInterestRate / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanTwoMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Applicable margin interest rate | 1.00%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanTwoMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instrument, interest rate at period end | 1.17%us-gaap_DebtInstrumentInterestRateAtPeriodEnd / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanTwoMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Debt instrument, original face amount | 100,000,000 uhal_DebtInstrumentOriginalFaceAmount / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanTwoMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Line of credit facility, maximum borrowing capacity | 125,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanTwoMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Notes, loans and leases payable | 75,000,000 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanTwoMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity date | Oct. 31, 2017 |  |
Various Subsidiaries of Amerco Real Estate and Uhaul Intl [Member] | Revolving Fleet Loan Three [Member] |  |  |
Debt instruments, interest rate, effective percentage: |  |  |
LIBOR | 0.17%us-gaap_LongTermDebtPercentageBearingVariableInterestRate / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanThreeMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Applicable margin interest rate | 1.85%us-gaap_DebtInstrumentInterestRateEffectivePercentage / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanThreeMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instrument, interest rate at period end | 2.02%us-gaap_DebtInstrumentInterestRateAtPeriodEnd / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanThreeMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Debt instrument, original face amount | 70,000,000 uhal_DebtInstrumentOriginalFaceAmount / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanThreeMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Notes, loans and leases payable | 50,000,000 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = uhal_RevolvingFleetLoanThreeMember / us-gaap_StatementBusinessSegmentsAxis = uhal_VariousSubsidiariesOfAmercoRealEstateAndUhaulIntlMember |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity date | May 31, 2019 |  |
Amerco Real Estate Company [Member] | Capital Lease Obligations [Member] | U-Haul Int'l and Amerco Guarantor [Member] |  |  |
Debt instruments, interest rate, effective percentage: |  |  |
Applicable margin interest rate | 1.25%us-gaap_DebtInstrumentInterestRateEffectivePercentage / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = us-gaap_CapitalLeaseObligationsMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoRealEstateCompanyMember |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Line of credit facility, maximum borrowing capacity | 25,000,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = us-gaap_CapitalLeaseObligationsMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoRealEstateCompanyMember |  |
Line of credit, current borrowing capacity | 25,000,000 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = us-gaap_CapitalLeaseObligationsMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoRealEstateCompanyMember |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity date | Apr. 30, 2016 |  |
Uhaul Intl and Subsidiaries [Member] | Rental Truck (Amortizing Credit) First Loan [Member] | U-Haul Int'l and Amerco Guarantor [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage rate range, minimum | 2.82%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditFirstLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
Debt instrument, interest rate, stated percentage rate range, maximum | 5.57%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditFirstLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
Debt instruments, interest rate, effective percentage: |  |  |
LIBOR | 0.17%us-gaap_LongTermDebtPercentageBearingVariableInterestRate / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditFirstLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
LIBOR - highest rate | 0.18%uhal_HighLiborRate / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditFirstLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
Applicable margin, per loan agreement, minimum rate | 1.35%uhal_ApplicableMarginPerLoanAgreementMinimumRate / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditFirstLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
Applicable margin, per loan agreement, maximum rate | 2.50%uhal_ApplicableMarginPerLoanAgreementMaximumRate / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditFirstLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Notes, loans and leases payable | 202,800,000 us-gaap_DebtAndCapitalLeaseObligations / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditFirstLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity date range, start | Jul. 01, 2015 |  |
Debt instrument, maturity date range, end | Mar. 31, 2021 |  |
Uhaul Intl and Subsidiaries [Member] | Rental Truck (Amortizing Credit) Second Loan [Member] | U-Haul Int'l and Amerco Guarantor [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage rate range, minimum | 3.52%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditSecondLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
Debt instrument, interest rate, stated percentage rate range, maximum | 3.53%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditSecondLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Line of credit, current borrowing capacity | 115,000,000 us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditSecondLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
Notes, loans and leases payable | 115,000,000 us-gaap_DebtAndCapitalLeaseObligations / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditSecondLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity date | Aug. 31, 2016 |  |
Uhaul Intl and Subsidiaries [Member] | Rental Truck (Amortizing Credit) Third Loan [Member] | U-Haul Int'l and Amerco Guarantor [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage rate range, minimum | 1.95%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditThirdLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
Debt instrument, interest rate, stated percentage rate range, maximum | 3.94%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditThirdLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Amounts held at fixed rate | 84,800,000 us-gaap_SecuredDebt / dei_LegalEntityAxis = uhal_UhaulIntlAmercoMember / us-gaap_LongtermDebtTypeAxis = uhal_RentalTruckAmortizingCreditThirdLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulIntlAndSubsidiariesMember |  |
Uhaul S Fleet Two Thousand Ten Box Truck Note [Member] | Securitization Second Loan [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage | 4.90%us-gaap_DebtInstrumentInterestRateStatedPercentage / us-gaap_LongtermDebtTypeAxis = uhal_SecuritizationSecondLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulSFleetTwoThousandTenBoxTruckNoteMember |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Debt instrument, original face amount | 155,000,000 uhal_DebtInstrumentOriginalFaceAmount / us-gaap_LongtermDebtTypeAxis = uhal_SecuritizationSecondLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulSFleetTwoThousandTenBoxTruckNoteMember |  |
Notes, loans and leases payable | 75,800,000 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = uhal_SecuritizationSecondLoanMember / us-gaap_StatementBusinessSegmentsAxis = uhal_UhaulSFleetTwoThousandTenBoxTruckNoteMember |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity date | Oct. 25, 2017 |  |
Debt instrument, issuance date | Oct. 28, 2010 |  |
AMERCO [Member] | Capital Leases for New Equipment [Member] |  |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Notes, loans and leases payable | 602,500,000 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = uhal_CapitalLeasesForNewEquipmentMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoBusinessSegmentMember |  |
Capitalized assets, net book value | 735,600,000 us-gaap_PropertyPlantAndEquipmentOtherNet / us-gaap_LongtermDebtTypeAxis = uhal_CapitalLeasesForNewEquipmentMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoBusinessSegmentMember |  |
Debt instruments, miscellaneous information: |  |  |
Terms of lease | Between 5 and 7 years |  |
Amerco, Us Bank, National Association, Trustee [Member] | Other Borrowings [Member] |  |  |
Debt instruments, interest rate, stated percentage: |  |  |
Debt instrument, interest rate, stated percentage rate range, minimum | 3.00%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_LongtermDebtTypeAxis = uhal_OtherBorrowingsMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoUsBankNationalAssociationTrusteeMember |  |
Debt instrument, interest rate, stated percentage rate range, maximum | 8.00%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LongtermDebtTypeAxis = uhal_OtherBorrowingsMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoUsBankNationalAssociationTrusteeMember |  |
Debt instruments, face, payment, and remaining balance amount: |  |  |
Notes, loans and leases payable | 53,600,000 us-gaap_DebtAndCapitalLeaseObligations / us-gaap_LongtermDebtTypeAxis = uhal_OtherBorrowingsMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoUsBankNationalAssociationTrusteeMember |  |
Subsidiary holdings of parent company debt | $ 6,300,000 uhal_SubsidiariesShareOfDebtPurchasedFromParent / us-gaap_LongtermDebtTypeAxis = uhal_OtherBorrowingsMember / us-gaap_StatementBusinessSegmentsAxis = uhal_AmercoUsBankNationalAssociationTrusteeMember |  |
Debt instruments, issuance and maturity dates: |  |  |
Debt instrument, maturity date range, start | Apr. 01, 2015 |  |
Debt instrument, maturity date range, end | Dec. 31, 2045 |  |
Debt instrument, issuance date | Feb. 01, 2011 |  |

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- Definition Fleet loan provision specified LIBOR plus applicable margin. This is the highest of the two applicable margin rates at the time of the loan agreement. + References No definition available. + Details
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- Definition Fleet loan provision specified LIBOR plus applicable margin. This is the lower of the two applicable margin rates at the time of the loan agreement. + References No definition available. + Details
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- Definition Historic applicable margins. This is the higher of the rate range. + References No definition available. + Details
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- Definition Historic applicable margin. This is the lower of the rate range. + References No definition available. + Details
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- Definition The debt agreement amount at the beginning of this contract. It is no longer valid because of a subsequent amendment in the terms of this loan. + References No definition available. + Details
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- Definition Fees on early extinguishment of debt + References No definition available. + Details
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- Definition We include two different LIBOR rates for these loans in our documentation. + References No definition available. + Details
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- Definition The amount of corporate (parent company) debt held by our insurance subsidiaries. + References No definition available. + Details
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- Definition The effective interest rate at the end of the reporting period. + References No definition available. + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Maximum contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Minimum contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date the debt instrument was issued, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition A general description of the lessee's leasing arrangements including, but not limited to, the following: a) the basis on which contingent rental payments are determined; (b) the existence and terms of renewal or purchase options and escalation clauses; (c) restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6452660&loc=d3e36991-112694 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 25 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6394851&loc=SL2265659-115463 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 15 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=51672649&loc=d3e32400-112679 + Details
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- Definition Stated maturity date of the mortgage loan receivable on real estate, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 10 -Section S99 -Paragraph 6 -Subparagraph (SX 210.5-04.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 310 -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-29) -URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014 + Details
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