Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2019	Mar. 31, 2018
ASSETS:
Cash and cash equivalents	$ 673,701	$ 759,388
Reinsurance recoverables and trade receivables, net	224,785	193,538
Inventories, net	103,504	89,877
Prepaid expenses	174,100	166,129
Investments, fixed maturities and marketable equities	2,235,397	1,919,860
Investments, other	300,736	399,064
Deferred policy acquisition costs, net	136,276	124,767
Other assets	78,354	244,782
Related party assets	30,889	33,276
Subtotal assets	3,957,742	3,930,681
Property, plant and equipment, at cost:
Land	976,454	827,649
Buildings and improvements	4,003,726	3,140,713
Furniture and equipment	689,780	632,803
Property, plant and equipment (gross)	11,022,027	9,537,883
Less: Accumulated depreciation	(3,088,056)	(2,721,142)
Total property, plant and equipment	7,933,971	6,816,741
Total assets	11,891,713	10,747,422
Liabilities:
Accounts payable and accrued expenses	556,873	511,115
Notes, loans and leases payable	4,163,323	3,513,076
Policy benefits and losses, claims and loss expenses payable	1,011,183	1,248,033
Liabilities from investment contracts	1,666,742	1,364,066
Other policyholders' funds and liabilities	15,047	10,040
Deferred income	35,186	34,276
Deferred income taxes, net	750,970	658,108
Total liabilities	8,199,324	7,338,714
Commitments and contingencies (notes 9, 16, 17 and 18)
Stockholders' equity:
Additional paid-in capital	453,326	452,746
Accumulated other comprehensive loss	(66,698)	(4,623)
Retained earnings	3,976,962	3,635,561
Unearned employee stock ownership plan shares	(4,048)	(7,823)
Total stockholders' equity	3,692,389	3,408,708
Total liabilities and stockholders' equity	11,891,713	10,747,422
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	(525,663)	(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	590,039	545,968
Rental Trucks [Member]
Property, plant and equipment, at cost:
Property subject to or available for operating lease, gross	$ 4,762,028	$ 4,390,750