Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Self-moving equipment rentals	$ 975,552	$ 808,215	$ 3,189,990	$ 2,393,530
Self-storage revenues	159,424	123,024	450,302	347,252
Self moving and self-storage products and service sales	75,402	74,586	272,478	264,564
Property management fees	9,651	8,765	26,847	23,952
Life insurance premiums	27,010	29,993	84,628	91,958
Property and casualty insurance premiums	25,618	19,933	64,986	49,536
Net investment and interest income	31,184	35,580	102,963	85,895
Other revenue	100,495	69,886	349,252	225,440
Total revenues	1,404,336	1,169,982	4,541,446	3,482,127
Costs and expenses:
Operating expenses	658,095	539,942	1,968,698	1,606,687
Commission expenses	105,155	86,891	346,200	255,431
Cost of sales	57,042	45,752	193,448	159,516
Benefits and losses	47,266	45,631	139,194	130,660
Amortization of deferred policy acquisition costs	7,947	6,572	23,520	19,012
Lease expense	7,394	7,522	22,482	20,995
Depreciation, net of (gains) losses on disposals	103,736	152,602	361,201	455,711
Net (gains) losses on disposal of real estate	977	1,124	(2,930)	4,293
Total costs and expenses	987,612	886,036	3,051,813	2,652,305
Earnings from operations	416,724	283,946	1,489,633	829,822
Other components of net periodic benefit costs	(280)	(247)	(840)	(740)
Interest expense	(44,042)	(42,128)	(122,765)	(122,174)
Fees on early extinguishment of debt	(956)	0	(956)	0
Pretax earnings	371,446	241,571	1,365,072	706,908
Income tax expense	(89,980)	(58,586)	(328,533)	(169,832)
Earnings available to common stockholders	$ 281,466	$ 182,985	$ 1,036,539	$ 537,076
Basic and diluted earnings per common share	$ 14.35	$ 9.33	$ 52.86	$ 27.39
Weighted average common shares outstanding: basic and diluted	19,607,788	19,607,788	19,607,788	19,607,788