Condensed Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Revenues:
Self-moving equipment rentals	$ 1,955,423	$ 1,767,520	$ 1,678,256
Self-storage revenues	181,794	152,660	134,376
Self-moving and self-storage products and service sales	234,187	221,117	213,854
Property management fees	24,493	24,378	23,266
Life insurance premiums	157,919	178,115	277,562
Property and casualty insurance premiums	41,052	34,342	32,631
Net investment and interest income	79,591	82,903	73,552
Other revenue	160,793	97,552	78,530
Total revenues	2,835,252	2,558,587	2,512,027
Costs and expenses:
Operating expenses	1,288,481	1,170,568	1,093,190
Commission expenses	252,525	228,124	212,190
Cost of sales	127,270	107,216	116,542
Benefits and losses	156,702	180,676	320,191
Amortization of deferred policy acquisition costs	19,982	17,376	13,791
Lease expense	100,466	117,448	131,215
Depreciation, net of (gains) losses on disposals	259,612	237,996	208,901
Total expenses	2,205,038	2,059,404	2,096,020
Earnings from operations	630,214	499,183	416,007
Interest expense	(92,692)	(90,696)	(90,371)
Pretax earnings	537,522	408,487	325,636
Income tax expense	(195,131)	(143,779)	(120,269)
Net earnings	342,391	264,708	205,367
Less: Excess of redemption value over carrying value of preferred shares redeemed			(5,908)
Less: Preferred stock dividends			(2,913)
Earnings available to common shareholders	$ 342,391	$ 264,708	$ 196,546
Basic and diluted earnings per common share	$ 17.51	$ 13.56	$ 10.09
Weighted average common shares outstanding: basic and diluted	19,558,758	19,518,779	19,476,187