Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020
ASSETS:
Cash and cash equivalents	$ 825,074	$ 494,352
Reinsurance recoverables and trade receivables, net	208,371	186,672
Inventories, net	100,835	101,083
Prepaid expenses	585,879	562,904
Investments, fixed maturities and marketable equities	2,393,522	2,492,738
Investments, other	395,123	360,373
Deferred policy acquisition costs, net	117,123	103,118
Other assets	70,415	71,956
Right of use Assets - Financing	1,026,928	1,080,353
Right of use Assets - Operating	106,682	106,631
Related party assets	9,406	34,784
Subtotal assets	5,839,358	5,594,964
Property, plant and equipment, at cost:
Land	1,043,952	1,032,945
Buildings and improvements	4,752,816	4,663,461
Furniture and equipment	754,641	752,363
Property, plant and equipment (gross)	10,684,750	10,556,222
Less: Accumulated depreciation	(2,811,749)	(2,713,162)
Total property, plant and equipment	7,873,001	7,843,060
Total assets	13,712,359	13,438,024
Liabilities:
Accounts payable and accrued expenses	582,356	554,353
Notes, loans and leases payable	4,777,963	4,621,291
Financing lease liability	666,316
Operating lease liability	106,614	106,443
Policy benefits and losses, claims and loss expenses payable	998,762	997,647
Liabilities from investment contracts	1,833,617	1,802,217
Other policyholders' funds and liabilities	6,764	10,190
Deferred income	42,789	31,620
Deferred income taxes, net	1,106,312	1,093,543
Total liabilities	9,455,177	9,217,304
Commitments and contingencies (notes 4, 8 and 9)
Stockholders' equity:
Additional paid-in capital	453,819	453,819
Accumulated other comprehensive loss	(13,732)	34,652
Retained earnings	4,484,248	4,399,402
Unearned employee stock ownership plan shares	0	0
Total stockholders' equity	4,257,182	4,220,720
Total liabilities and stockholders' equity	13,712,359	13,438,024
Series A Preferred Stock [Member]
Stockholders' equity:
Preferred stock, value, issued	0	0
Series B Preferred Stock [Member]
Stockholders' equity:
Preferred stock, value, issued	0	0
Serial Common Stock [Member]
Stockholders' equity:
Common stock, value, issued	0	0
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	513,623	511,520
Rental Trucks [Member]
Property, plant and equipment, at cost:
Property subject to or available for operating lease, gross	$ 3,619,718	$ 3,595,933