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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.

No definition available.

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Sum of LIBOR and margin, at the higher of the rate.

No definition available.

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This is the sum of LIBOR and margin, at the lower of the rate range.

No definition available.

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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 It is no longer valid because of a subsequent amendment in the terms of this loan.

No definition available.

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We include two different LIBOR rates for these loans in our documentation.

No definition available.

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The amount of corporate (parent company) debt held by our insurance subsidiaries.

No definition available.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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No definition available.

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Contractual interest rate for funds borrowed, under the debt agreement.

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No definition available.

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Maximum contractual interest rate for funds borrowed, under the debt agreement.

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Minimum contractual interest rate for funds borrowed, under the debt agreement.

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Date the debt instrument was issued, in CCYY-MM-DD format.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Latest date the outstanding debt instruments are required to be repaid, in CCYY-MM-DD format.

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Earliest date the outstanding debt instruments are required to be repaid, in CCYY-MM-DD format.

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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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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The amount of cash paid for interest during the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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No definition available.

Name:	us-gaap_InterestPaidAbstract
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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Balance Type:	credit
Period Type:	instant

No definition available.

Name:	us-gaap_LongTermDebtAbstract
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No definition available.

Name:	us-gaap_LongTermDebtCurrentAbstract
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Balance Type:	na
Period Type:	duration

No definition available.

Name:	us-gaap_LongTermDebtOtherDisclosuresAbstract
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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

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Data Type:	num:percentItemType
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Period Type:	instant

Stated maturity date of the mortgage loan receivable on real estate, in CCYY-MM-DD format.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
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The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.

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Period Type:	instant

The net amount of capitalized assets classified as property, plant and equipment not otherwise defined in the taxonomy.

No definition available.

Name:	us-gaap_PropertyPlantAndEquipmentOtherNet
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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Article 5

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Data Type:	xbrli:monetaryItemType
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Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorLoansMember
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Name:	us-gaap_LongtermDebtTypeAxis=uhal_FleetLoanTermMember
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Data Type:	na
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Name:	us-gaap_LongtermDebtTypeAxis=uhal_CapitalLeasesForNewEquipmentMember
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