Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Revenues:
Self-moving equipment rentals	$ 808,215	$ 621,471	$ 2,393,530	$ 2,174,392
Self-storage revenues	123,024	106,701	347,252	309,940
Self moving and self-storage products and service sales	74,586	54,454	264,564	207,601
Property management fees	8,765	9,098	23,952	23,487
Life insurance premiums	29,993	31,164	91,958	96,229
Property and casualty insurance premiums	19,933	19,267	49,536	51,056
Net investment and interest income	35,580	33,782	85,895	102,629
Other revenue	69,886	51,943	225,440	192,009
Total revenues	1,169,982	927,880	3,482,127	3,157,343
Costs and expenses:
Operating expenses	539,942	517,453	1,606,687	1,617,338
Commission expenses	86,891	66,542	255,431	233,540
Cost of sales	45,752	35,318	159,516	128,177
Benefits and losses	45,631	42,864	130,660	137,695
Amortization of deferred policy acquisition costs	6,572	8,046	19,012	20,625
Lease expense	7,522	6,490	20,995	19,882
Depreciation, net of (gains) losses on disposals	152,602	170,074	455,711	462,227
Net (gains) losses on disposal of real estate	1,124	528	4,293	(1,311)
Total costs and expenses	886,036	847,315	2,652,305	2,618,173
Earnings from operations	283,946	80,565	829,822	539,170
Other components of net periodic benefit costs	(247)	(263)	(740)	(790)
Interest expense	(42,128)	(39,973)	(122,174)	(117,983)
Pretax earnings	241,571	40,329	706,908	420,397
Income tax expense	(58,586)	(9,397)	(169,832)	(100,717)
Earnings available to common stockholders	$ 182,985	$ 30,932	$ 537,076	$ 319,680
Basic and diluted earnings per common share	$ 9.33	$ 1.58	$ 27.39	$ 16.31
Weighted average common shares outstanding: basic and diluted	19,607,788	19,607,788	19,607,788	19,602,484