Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues:
Self-moving equipment rentals	$ 740,558	$ 711,710	$ 1,410,416	$ 1,358,046
Self-storage revenues	80,472	72,163	157,190	139,885
Self-moving and self-storage products and service sales	73,268	70,330	152,179	147,633
Property management fees	6,831	6,712	13,593	13,316
Life insurance premiums	38,862	40,893	77,953	81,785
Property and casualty insurance premiums	15,026	14,009	26,841	25,264
Net investment and interest income	26,469	25,590	53,686	52,921
Other revenue	61,200	57,278	108,753	103,026
Total revenues	1,042,686	998,685	2,000,611	1,921,876
Costs and expenses:
Operating expenses	492,482	398,213	909,406	783,295
Commission expenses	83,351	80,462	158,716	154,278
Cost of sales	42,866	40,952	90,461	84,314
Benefits and losses	47,109	46,836	94,829	93,839
Amortization of deferred policy acquisition costs	5,944	5,989	12,265	13,931
Lease expense	8,575	9,349	16,862	20,397
Depreciation, net of (gains) losses on disposals	132,978	109,904	259,660	205,285
Total costs and expenses	813,305	691,705	1,542,199	1,355,339
Earnings from operations	229,381	306,980	458,412	566,537
Interest expense	(32,023)	(27,989)	(62,368)	(54,415)
Pretax earnings	197,358	278,991	396,044	512,122
Income tax expense	(72,719)	(102,516)	(145,198)	(188,474)
Earnings available to common shareholders	$ 124,639	$ 176,475	$ 250,846	$ 323,648
Basic and diluted earnings per common share	$ 6.36	$ 9.01	$ 12.81	$ 16.52
Weighted average common shares outstanding: basic and diluted	19,588,571	19,586,411	19,588,231	19,586,240