Consolidated Statements Of Stockholders' Equity (Deficit) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Deferred Stock Units [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]	Total
Balance, value at Dec. 31, 2013	$ 10,119	$ 825,320	$ 5,110	$ 1,493,393	$ 13,622	$ (1,829,378)	$ 28	$ 518,214
Balance, shares at Dec. 31, 2013	101,188
Net income (loss)				181,906			45	181,951
Other comprehensive loss, net					(21,693)			(21,693)
Repurchases of common stock						(623,888)		(623,888)
Common stock issued under stock plans, including excess tax benefit, value	$ 76	45,162						45,238
Common stock issued under stock plans, including excess tax benefit, shares	759
Deferred stock units activity		(218)	(114)					(332)
Share-based compensation cost		18,029	70					18,099
Balance, value at Dec. 31, 2014	$ 10,195	888,293	5,066	1,675,299	(8,071)	(2,453,266)	73	117,589
Balance, shares at Dec. 31, 2014	101,947
Net income (loss)				192,078			57	192,135
Other comprehensive loss, net					(34,194)			(34,194)
Repurchases of common stock						(412,172)		(412,172)
Stock split enacted through stock dividend				(1,518,264)		1,518,264
Shares retired, value				(30,757)		30,757
Shares retired, shares	(346)
Common stock issued under stock plans, including excess tax benefit, value	$ 63	32,700						32,763
Common stock issued under stock plans, including excess tax benefit, shares	636
Deferred stock units activity		(258)	258
Share-based compensation cost		19,799	85					19,884
Balance, value at Dec. 31, 2015	$ 10,258	940,534	5,409	318,356	(42,265)	(1,316,417)	130	$ (83,995)
Balance, shares at Dec. 31, 2015	102,237							102,237
Net income (loss)				222,045			9	$ 222,054
Other comprehensive loss, net					(788)			(788)
Repurchases of common stock						(317,026)		(317,026)
Common stock issued under stock plans, including excess tax benefit, value	$ 76	51,904						51,980
Common stock issued under stock plans, including excess tax benefit, shares	1,104
Deferred stock units activity		(343)	14					(329)
Share-based compensation cost		19,800	91					19,891
Balance, value at Dec. 31, 2016	$ 10,334	$ 1,011,895	$ 5,514	$ 540,401	$ (43,053)	$ (1,633,443)	$ 139	$ (108,213)
Balance, shares at Dec. 31, 2016	103,341							103,341