CONDENSED CONSOLIDATED STATEMENT 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, 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	7,863	59	8,594			(790)
Employee stock awards, benefit plans and other issuances (in shares)		590,028				(56,600)
Restricted stock units vested		46	(46)
Restricted stock units vested (in shares)		464,688
Non-cash share-based compensation	8,906		8,906
Acquisition of treasury stock	(62,722)					(62,722)
Acquisition of treasury stock (in shares)						(4,059,090)
Comprehensive income:
Foreign currency translation	1,046				1,046
Unrealized loss on interest rate swap	67				67
Net earnings (loss)	44,020			44,369			(349)
Balances at Dec. 31, 2012	$ 611,035	$ 12,108	$ 877,619	$ 580,728	$ 14,714	$ (873,893)	$ (241)
Balances (in shares) at Dec. 31, 2012		121,081,729				(47,328,717)