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Schedule I - Condensed Financial Information of AMERCO Balance Sheets (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Mar. 31, 2013 | Mar. 31, 2012
ASSETS: |  |  |  |
Cash and cash equivalents | $ 441,850 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 495,112 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 463,744 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 357,180 us-gaap_CashAndCashEquivalentsAtCarryingValue
Investments in subsidiaries |  |  |  |
Related party assets | 141,790 us-gaap_DueFromRelatedParties | 169,624 us-gaap_DueFromRelatedParties |  |
Total assets | 6,872,175 us-gaap_Assets | 5,998,978 us-gaap_Assets | 5,306,601 us-gaap_Assets |
Liabilities: |  |  |  |
Other Liabilities | 4,987,816 us-gaap_Liabilities | 4,471,610 us-gaap_Liabilities |  |
Stockholders' equity: |  |  |  |
Additional paid-in capital | 449,668 us-gaap_AdditionalPaidInCapital | 444,210 us-gaap_AdditionalPaidInCapital |  |
Accumulated other comprehensive loss | (34,365)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax | (53,923)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax |  |
Consolidated statement of change in equity |  |  |  |
Beginning of period | 1,805,453 us-gaap_RetainedEarningsAccumulatedDeficit |  |  |
Net earnings | 356,741 us-gaap_NetIncomeLoss | 342,391 us-gaap_NetIncomeLoss | 264,708 us-gaap_NetIncomeLoss |
End of period | 2,142,600 us-gaap_RetainedEarningsAccumulatedDeficit | 1,805,453 us-gaap_RetainedEarningsAccumulatedDeficit |  |
Total stockholders' equity | 1,884,359 us-gaap_StockholdersEquity | 1,527,368 us-gaap_StockholdersEquity |  |
Total liabilities and stockholders' equity | 6,872,175 us-gaap_LiabilitiesAndStockholdersEquity | 5,998,978 us-gaap_LiabilitiesAndStockholdersEquity |  |
Common Stock in Treasury [Member] |  |  |  |
Consolidated statement of change in equity |  |  |  |
Cost of shares in treasury | (525,653)us-gaap_TreasuryStockValue / us-gaap_StatementClassOfStockAxis = uhal_CommonStockInTreasuryMember | (525,653)us-gaap_TreasuryStockValue / us-gaap_StatementClassOfStockAxis = uhal_CommonStockInTreasuryMember |  |
Preferred Stock in Treasury [Member] |  |  |  |
Consolidated statement of change in equity |  |  |  |
Cost of shares in treasury | (151,997)us-gaap_TreasuryStockValue / us-gaap_StatementClassOfStockAxis = uhal_PreferredStockInTreasuryMember | (151,997)us-gaap_TreasuryStockValue / us-gaap_StatementClassOfStockAxis = uhal_PreferredStockInTreasuryMember |  |
AMERCO [Member] |  |  |  |
ASSETS: |  |  |  |
Cash and cash equivalents | 291,550 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 321,544 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 327,119 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 201,502 us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember
Investments in subsidiaries | 813,735 us-gaap_EquityMethodInvestments / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 493,612 us-gaap_EquityMethodInvestments / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
Related party assets | 1,225,044 us-gaap_DueFromRelatedParties / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 1,150,671 us-gaap_DueFromRelatedParties / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
Other assets | 85,409 uhal_CombinedOtherAssets / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 18,712 uhal_CombinedOtherAssets / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
Total assets | 2,415,738 us-gaap_Assets / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 1,984,539 us-gaap_Assets / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
Liabilities: |  |  |  |
Other Liabilities | 524,988 us-gaap_Liabilities / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 455,952 us-gaap_Liabilities / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
Stockholders' equity: |  |  |  |
Preferred stock | 0 us-gaap_PreferredStockValue / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 0 us-gaap_PreferredStockValue / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
Common stock | 10,497 us-gaap_CommonStockValue / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 10,497 us-gaap_CommonStockValue / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
Additional paid-in capital | 449,878 us-gaap_AdditionalPaidInCapital / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 444,420 us-gaap_AdditionalPaidInCapital / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
Accumulated other comprehensive loss | (34,365)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | (53,923)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
Consolidated statement of change in equity |  |  |  |
Beginning of period | 1,805,243 us-gaap_RetainedEarningsAccumulatedDeficit / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 1,482,420 us-gaap_RetainedEarningsAccumulatedDeficit / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
Net earnings | 356,741 us-gaap_NetIncomeLoss / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 342,391 us-gaap_NetIncomeLoss / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 264,708 us-gaap_NetIncomeLoss / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |
Dividends | (19,594)us-gaap_Dividends / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | (19,568)us-gaap_Dividends / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
End of period | 2,142,390 us-gaap_RetainedEarningsAccumulatedDeficit / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 1,805,243 us-gaap_RetainedEarningsAccumulatedDeficit / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 1,482,420 us-gaap_RetainedEarningsAccumulatedDeficit / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |
Total stockholders' equity | 1,890,750 us-gaap_StockholdersEquity / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 1,528,587 us-gaap_StockholdersEquity / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
Total liabilities and stockholders' equity | 2,415,738 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | 1,984,539 us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
AMERCO [Member] | Common Stock in Treasury [Member] |  |  |  |
Consolidated statement of change in equity |  |  |  |
Cost of shares in treasury | (525,653)us-gaap_TreasuryStockValue / us-gaap_StatementClassOfStockAxis = uhal_CommonStockInTreasuryMember / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | (525,653)us-gaap_TreasuryStockValue / us-gaap_StatementClassOfStockAxis = uhal_CommonStockInTreasuryMember / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |
AMERCO [Member] | Preferred Stock in Treasury [Member] |  |  |  |
Consolidated statement of change in equity |  |  |  |
Cost of shares in treasury | $ (151,997)us-gaap_TreasuryStockValue / us-gaap_StatementClassOfStockAxis = uhal_PreferredStockInTreasuryMember / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember | $ (151,997)us-gaap_TreasuryStockValue / us-gaap_StatementClassOfStockAxis = uhal_PreferredStockInTreasuryMember / us-gaap_SubsegmentsConsolidationItemsAxis = uhal_AmercoBusinessSegmentMember |  |

X
- Definition Is a combination of several individual concepts combined for this schedule. The concepts include [1] OtherPrepaidExpenseCurrent: "Carrying amount as of the balance sheet date of expenditures made, not otherwise specified in the taxonomy, in advance of the timing of recognition of expenses which are expected to be charged against earnings within one year or the normal operating cycle, if longer." [2] MarketableSecurities: "Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale." [3] DepositsAssets: "Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment in the future." [4] FurnitureAndFixturesGross: "Gross amount, at the balance sheet date, of long-lived, depreciable assets commonly used in offices and stores. Examples include desks, chairs and store fixtures." [5] AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment: "The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement " This is only used in group 102205 that is a summary of AMERCO's balance sheet. Need it on Condensed Consolidated Balance Sheet schedule because of the calculation requirement that states a calculation can only be set once. + References No definition available. + Details
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- Definition Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 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 210.5-02.30(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3044-108585 + Details
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- Definition The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 + Details
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