CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional paid-in Capital	Retained earnings	Accumulated other comprehensive income	Treasury Stock	Noncontrolling Interest
Balances at Mar. 31, 2011	$ 591,033	$ 11,777	$ 837,439	$ 459,096	$ 15,991	$ (739,125)	$ 5,855
Balances (in shares) at Mar. 31, 2011		117,767,535				(37,183,774)
Increase (Decrease) in Stockholders' Equity
Employee stock awards, benefit plans and other issuances	12,205	128	15,295			(3,218)
Employee stock awards, benefit plans and other issuances (in shares)		1,281,649				(239,171)
Tax impact of stock options, warrants and restricted stock	(1,310)		(1,310)
Non-cash share-based compensation	8,970		8,839			131
Non-cash share-based compensation (in shares)						8,262
Restricted stock units vested		98	(98)
Restricted stock units vested (in shares)		977,829
Acquisition of treasury stock	(68,169)					(68,169)
Acquisition of treasury stock (in shares)	(5,800,000)					(5,798,344)
Comprehensive income (loss):
Foreign currency translation	(2,219)				(2,219)
Unrealized gain (loss) on interest rate swap	(171)				(171)
Net earnings (loss)	71,516			77,263			(5,747)
Balances at Mar. 31, 2012	611,855	12,003	860,165	536,359	13,601	(810,381)	108
Balances (in shares) at Mar. 31, 2012		120,027,013				(43,213,027)
Increase (Decrease) in Stockholders' Equity
Employee stock awards, benefit plans and other issuances	11,957	84	12,707			(834)
Employee stock awards, benefit plans and other issuances (in shares)		845,618				(58,966)
Tax impact of stock options, warrants and restricted stock	357		357
Non-cash share-based compensation	12,002		12,002
Restricted stock units vested		47	(47)
Restricted stock units vested (in shares)		470,285
Acquisition of treasury stock	(71,744)					(71,744)
Acquisition of treasury stock (in shares)	(4,600,000)					(4,553,042)
Comprehensive income (loss):
Foreign currency translation	(2,489)				(2,489)
Unrealized gain (loss) on interest rate swap	311				311
Net earnings (loss)	57,119			57,607			(488)
Balances at Mar. 31, 2013	619,368	12,134	885,184	593,966	11,423	(882,959)	(380)
Balances (in shares) at Mar. 31, 2013	121,300,000	121,342,916				(47,825,035)
Increase (Decrease) in Stockholders' Equity
Employee stock awards, benefit plans and other issuances	80,490	402	84,422			(4,334)
Employee stock awards, benefit plans and other issuances (in shares)		4,018,507				(155,089)
Tax impact of stock options, warrants and restricted stock	11,295		11,295
Non-cash share-based compensation	13,925		13,925
Restricted stock units vested		48	(48)
Restricted stock units vested (in shares)		482,185
Warrant exercises			(11,753)			11,753
Warrant exercises (in shares)						769,927
Acquisition of treasury stock	(52,663)					(52,663)
Acquisition of treasury stock (in shares)	(2,000,000)					(1,993,310)
Acquisition of noncontrolling interest	(600)		(1,040)				440
Comprehensive income (loss):
Foreign currency translation	1,511				1,511
Unrealized gain (loss) on interest rate swap	728				728
Net earnings (loss)	8,803			8,863			(60)
Balances at Mar. 31, 2014	$ 682,857	$ 12,584	$ 981,985	$ 602,829	$ 13,662	$ (928,203)
Balances (in shares) at Mar. 31, 2014	125,800,000	125,843,608				(49,203,507)