Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Mar. 31, 2016
ASSETS:
Cash and cash equivalents	$ 921,327	$ 600,646
Reinsurance recoverables and trade receivables, net	183,243	175,210
Inventories, net	81,609	79,756
Prepaid expenses	87,968	134,300
Investments, fixed maturities and marketable equities	1,632,420	1,510,538
Investments, other	382,065	310,072
Deferred policy acquisition costs, net	118,652	136,386
Other assets	85,600	77,210
Related party assets	80,171	85,734
Subtotal assets	3,573,055	3,109,852
Property, plant and equipment, at cost:
Land	616,969	587,347
Buildings and improvements	2,401,802	2,187,400
Furniture and equipment	448,990	399,943
Property, plant and equipment, gross	7,678,480	7,151,244
Less: Accumulated depreciation	(2,244,417)	(2,133,733)
Total property, plant and equipment	5,434,063	5,017,511
Total assets	9,007,118	8,127,363
Liabilities:
Accounts payable and accrued expenses	438,921	502,613
Notes, loans and leases payable	2,992,490	2,665,396
Policy benefits and losses, claims and loss expenses payable	1,088,128	1,071,412
Liabilities from investment contracts	1,043,129	951,490
Other policyholders' funds and liabilities	10,211	8,650
Deferred income	27,801	22,784
Deferred income taxes, net	791,524	653,612
Total liabilities	6,392,204	5,875,957
Commitments and contingencies (notes 4, 8 and 9)
Stockholders' equity:
Additional paid-in capital	451,909	451,629
Accumulated other comprehensive loss	(19,890)	(60,525)
Retained earnings	2,857,289	2,533,641
Unearned employee stock ownership plan shares	(7,241)	(6,186)
Total stockholders' equity	2,614,914	2,251,406
Total liabilities and stockholders' equity	9,007,118	8,127,363
Series A Preferred Stock [Member]
Stockholders' equity:
Preferred stock, value, issued
Series B Preferred Stock [Member]
Stockholders' equity:
Preferred stock, value, issued
Series A Common Stock [Member]
Stockholders' equity:
Common stock, value, issued
Amerco Common Stock [Member]
Stockholders' equity:
Common stock, value, issued	10,497	10,497
Common Stock in Treasury [Member]
Stockholders' equity:
Treasury stock, value	(525,653)	(525,653)
Preferred Stock in Treasury [Member]
Stockholders' equity:
Treasury stock, value	(151,997)	(151,997)
Rental Trailers and Other Rental Equipment [Member]
Property, plant and equipment, at cost:
Property subject to or available for operating lease, gross	490,451	462,379
Rental Trucks [Member]
Property, plant and equipment, at cost:
Property subject to or available for operating lease, gross	$ 3,720,268	$ 3,514,175