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.

No definition available.

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	$ 495,112	$ 463,744	$ 357,180
Investments in subsidiaries
Related party assets	141,790us-gaap_DueFromRelatedParties	169,624us-gaap_DueFromRelatedParties
Total assets	6,872,175us-gaap_Assets	5,998,978us-gaap_Assets	5,306,601us-gaap_Assets
Liabilities:
Other Liabilities	4,987,816us-gaap_Liabilities	4,471,610us-gaap_Liabilities
Stockholders' equity:
Additional paid-in capital	449,668us-gaap_AdditionalPaidInCapital	444,210us-gaap_AdditionalPaidInCapital
Accumulated other comprehensive loss	(34,365)	(53,923)
Consolidated statement of change in equity
Beginning of period	1,805,453
Net earnings	356,741us-gaap_NetIncomeLoss	342,391us-gaap_NetIncomeLoss	264,708us-gaap_NetIncomeLoss
End of period	2,142,600	1,805,453
Total stockholders' equity	1,884,359us-gaap_StockholdersEquity	1,527,368us-gaap_StockholdersEquity
Total liabilities and stockholders' equity	6,872,175	5,998,978
Common Stock in Treasury [Member]
Consolidated statement of change in equity
Cost of shares in treasury	(525,653)	(525,653)
Preferred Stock in Treasury [Member]
Consolidated statement of change in equity
Cost of shares in treasury	(151,997)	(151,997)
AMERCO [Member]
ASSETS:
Cash and cash equivalents	291,550	321,544	327,119	201,502
Investments in subsidiaries	813,735	493,612
Related party assets	1,225,044	1,150,671
Other assets	85,409	18,712
Total assets	2,415,738	1,984,539
Liabilities:
Other Liabilities	524,988	455,952
Stockholders' equity:
Preferred stock	0	0
Common stock	10,497	10,497
Additional paid-in capital	449,878	444,420
Accumulated other comprehensive loss	(34,365)	(53,923)
Consolidated statement of change in equity
Beginning of period	1,805,243	1,482,420
Net earnings	356,741	342,391	264,708
Dividends	(19,594)	(19,568)
End of period	2,142,390	1,805,243	1,482,420
Total stockholders' equity	1,890,750	1,528,587
Total liabilities and stockholders' equity	2,415,738	1,984,539
AMERCO [Member] \| Common Stock in Treasury [Member]
Consolidated statement of change in equity
Cost of shares in treasury	(525,653)	(525,653)
AMERCO [Member] \| Preferred Stock in Treasury [Member]
Consolidated statement of change in equity
Cost of shares in treasury	$ (151,997)	$ (151,997)