CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Thousands, unless otherwise specified	Total	Accumulated (Deficit) Earnings	Accumulated Other Comprehensive Income	Common Stock	Capital in Excess of Par	Treasury Stock	Non-controlling Interest
Balance at Dec. 31, 2011	$ 527,363	$ (465,596)	$ 4,593	$ 785	$ 2,056,921	$ (1,071,120)	$ 1,780
Components of comprehensive income, net of tax:
Net income	57,136	56,907					229
Other comprehensive income	(2,395)		(2,400)				5
Total comprehensive income	54,741						234
Tax detriment associated with stock issued under employee compensation plans	(148)				(148)
Issuance of stock under employee compensation plans	3,121			6	3,115
Acquisition of treasury shares	(30,813)					(30,813)
Stock-based compensation	10,586				10,586
Balance at Jun. 30, 2012	$ 564,850	$ (408,689)	$ 2,193	$ 791	$ 2,070,474	$ (1,101,933)	$ 2,014