Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues:
Self-moving equipment rentals	$ 781,713	$ 740,558	$ 1,498,315	$ 1,410,416
Self-storage revenues	91,493	80,472	177,705	157,190
Self-moving and self-storage products and service sales	72,913	73,268	152,154	152,179
Property management fees	7,192	6,831	14,608	13,593
Life insurance premiums	35,920	38,862	72,808	77,953
Property and casualty insurance premiums	16,283	15,026	29,064	26,841
Net investment and interest income	28,227	26,469	52,832	53,686
Other revenue	70,766	61,200	126,598	108,753
Total revenues	1,104,507	1,042,686	2,124,084	2,000,611
Costs and expenses:
Operating expenses	529,350	492,250	1,025,904	908,942
Commission expenses	85,334	83,351	164,591	158,716
Cost of sales	46,402	42,866	96,283	90,461
Benefits and losses	45,773	47,109	94,327	94,829
Amortization of deferred policy acquisition costs	5,899	5,944	11,930	12,265
Lease expense	8,170	8,575	16,339	16,862
Depreciation, net of (gains) losses on disposals	132,625	133,144	259,052	259,479
Net (gains) losses on disposal of real estate	10	(166)	10	181
Total costs and expenses	853,563	813,073	1,668,436	1,541,735
Earnings from operations	250,944	229,613	455,648	458,876
Other components of net periodic benefit costs	(254)	(232)	(507)	(464)
Interest expense	(35,030)	(32,023)	(70,284)	(62,368)
Pretax earnings	215,660	197,358	384,857	396,044
Income tax expense	(52,118)	(72,719)	(93,466)	(145,198)
Earnings available to common stockholders	$ 163,542	$ 124,639	$ 291,391	$ 250,846
Basic and diluted earnings per common share	$ 8.35	$ 6.36	$ 14.87	$ 12.81
Weighted average common shares outstanding: basic and diluted	19,591,312	19,588,571	19,590,946	19,588,231