Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2016
Revenues:
Self-moving equipment rentals	$ 2,479,742	$ 2,362,833	$ 2,297,980
Self-storage revenues	323,903	286,886	247,944
Self-moving and self-storage products and service sales	261,557	253,073	251,541
Property management fees	29,602	29,075	26,533
Life insurance premiums	154,703	163,579	162,662
Property and casualty insurance premiums	57,100	52,334	50,020
Net investment and interest income	110,473	102,276	86,617
Other revenue	184,034	171,711	152,171
Total revenues	3,601,114	3,421,767	3,275,468
Costs and expenses:
Operating expenses	1,807,983	1,568,083	1,470,047
Commission expenses	276,705	267,230	262,627
Cost of sales	160,489	152,485	144,990
Benefits and losses	185,311	182,710	167,436
Amortization of deferred policy acquisition costs	24,514	26,218	23,272
Lease expense	33,960	37,343	49,780
Depreciation, net of (gains) losses on disposals	543,247	449,025	291,235
Net gains on disposal of real estate	(195,414)	(3,590)	(545)
Total costs and expenses	2,836,795	2,679,504	2,408,842
Earnings from operations	764,319	742,263	866,626
Interest expense	(126,706)	(113,406)	(97,715)
Fees and amortization on early extinguishment of debt		(499)
Pretax earnings	637,613	628,358	768,911
Income tax expense	152,970	(229,934)	(279,910)
Earnings available to common shareholders	$ 790,583	$ 398,424	$ 489,001
Basic and diluted earnings per common share	$ 40.36	$ 20.34	$ 24.95
Weighted average common shares outstanding: basic and diluted	19,588,889	19,586,606	19,596,110