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	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
ASSETS:
Cash and cash equivalents	$ 759,388	$ 697,806	$ 600,646	$ 441,850
Investments in subsidiaries
Related party assets	33,276	86,168
Total assets	10,746,985	9,405,840	8,109,288
Liabilities:
Other Liabilities	7,338,277	6,786,096
Stockholders' equity:
Additional paid-in capital	452,746	452,172
Accumulated other comprehensive loss	(4,623)	(51,236)
Consolidated statement of change in equity
Beginning of period	2,892,893
Net earnings	790,583	398,424	489,001
End of period	3,635,561	2,892,893
Total stockholders' equity	3,408,708	2,619,744
Total liabilities and stockholders' equity	10,746,985	9,405,840
Common Stock in Treasury [Member]
Consolidated statement of change in equity
Cost of shares in treasury	(525,663)	(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	469,209	361,231	381,690	$ 291,550
Investments in subsidiaries	2,244,867	1,522,083
Related party assets	1,227,491	1,474,948
Other assets	114,568	78,119
Total assets	4,056,135	3,436,381
Liabilities:
Other Liabilities	639,604	809,705
Stockholders' equity:
Preferred stock
Common stock	10,497	10,497
Additional paid-in capital	452,956	452,382
Accumulated other comprehensive loss	(4,623)	(51,236)
Consolidated statement of change in equity
Beginning of period	2,892,683	2,533,431
Net earnings	790,583	398,424	489,001
Dividends	(39,175)	(39,172)
End of period	3,635,351	2,892,683	$ 2,533,431
Total stockholders' equity	3,416,531	2,626,676
Total liabilities and stockholders' equity	4,056,135	3,436,381
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)