Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Revenues:
Self-moving equipment rentals	$ 2,362,833	$ 2,297,980	$ 2,146,391
Self-storage revenues	286,886	247,944	211,136
Self-moving and self-storage products and service sales	253,073	251,541	244,177
Property management fees	29,075	26,533	25,341
Life insurance premiums	163,579	162,662	156,103
Property and casualty insurance premiums	52,334	50,020	46,456
Net investment and interest income	102,276	86,617	84,728
Other revenue	171,711	152,171	160,199
Total revenues	3,421,767	3,275,468	3,074,531
Costs and expenses:
Operating expenses	1,568,083	1,470,047	1,479,409
Commission expenses	267,230	262,627	249,642
Cost of sales	152,485	144,990	146,072
Benefits and losses	182,710	167,436	158,760
Amortization of deferred policy acquisition costs	26,218	23,272	19,661
Lease expense	37,343	49,780	79,798
Depreciation, net of (gains) losses on disposals	445,435	290,690	278,165
Total costs and expenses	2,679,504	2,408,842	2,411,507
Earnings from operations	742,263	866,626	663,024
Interest expense	(113,406)	(97,715)	(97,525)
Fees and amortization on early extinguishment of debt	(499)		(4,081)
Pretax earnings	628,358	768,911	561,418
Income tax expense	(229,934)	(279,910)	(204,677)
Earnings available to common shareholders	$ 398,424	$ 489,001	$ 356,741
Basic and diluted earnings per common share	$ 20.34	$ 24.95	$ 18.21
Weighted average common shares outstanding: basic and diluted	19,586,606	19,596,110	19,586,633