Condensed Consolidated Statement of Changes in Stockholders' Equity (USD $) In Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Common Stock Held in Treasury	Accumulated Other Comprehensive Income	Comprehensive Income
Balance at Dec. 31, 2010	$ 870,068	$ 518	$ 246,085	$ 833,133	$ (220,161)	$ 10,493
Increase (Decrease) in Stockholders' Equity
Net (loss)	(186,594)			(186,594)			(186,594)
Other comprehensive income:
Currency translation adjustment	4,142					4,142	4,142
Unrealized holding gain on securities available-for-sale (net of tax)	(86)					(86)	(86)
Comprehensive (loss) income	(182,538)						(182,538)
Issuance of common stock for stock options (111,792 shares) share awards (634,585 shares) and employee stock unit awards (178,818 shares), including tax benefit decrease of $2.0 million	3,412		(15,861)		19,273
Issuance of common stock for the employee stock purchase plan (44,787 shares)	594		594
Shares withheld for net settlements of share-based awards (278,877 shares)	(4,993)				(4,993)
Purchase of common stock for treasury (1,014,500 shares)	(17,828)				(17,828)
Share-based compensation	10,042		10,042
Balance at Jun. 30, 2011	$ 678,757	$ 518	$ 240,860	$ 646,539	$ (223,709)	$ 14,549