Consolidated Statements Of Stockholders' Equity And Comprehensive Income (USD $) In Thousands, unless otherwise specified	Redeemable Noncontrolling Interest [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]	Total
Beginning balance at Dec. 31, 2008	$ 31,130	$ 795	$ 1,217,903	$ 2,004,115	$ 254,535	$ (323,545)	$ 3,153,803
Beginning balance, shares at Dec. 31, 2008		79,461				(11,040)
Shares issued under employee and director stock plans			642			184	826
Shares issued under employee and director stock plans, shares		57				6
Stock-based compensation expense			9,653				9,653
Tax deficit from stock-based compensation			(342)				(342)
Distribution to noncontrolling interest, net of adjustments	(2,151)
Noncontrolling earnings	4,480						4,480
Comprehensive income:
Currency translation adjustment					36,089		36,089
Unrealized loss on hedge instruments net of taxes					7,207		7,207
Pension prior service cost and actuarial gain or loss					(914)		(914)
Net income (loss)				(5,499)			(5,499)
Total comprehensive income (loss)							36,883
Ending balance at Dec. 31, 2009	33,459	795	1,227,856	1,998,616	296,917	(323,361)	3,200,823
Ending balance, shares at Dec. 31, 2009		79,518				(11,034)
Shares issued under employee and director stock plans		2	1,685			(265)	1,422
Shares issued under employee and director stock plans, shares		148				(3)
Stock-based compensation expense			6,888				6,888
Tax deficit from stock-based compensation			(984)				(984)
Distribution to noncontrolling interest, net of adjustments	(5,726)
Noncontrolling earnings	4,464						4,464
Accretion of redeemable noncontrolling interest	3,244			(3,244)			(3,244)	[1]
Comprehensive income:
Currency translation adjustment					(119,200)		(119,200)
Pension prior service cost and actuarial gain or loss					380		380
Net income (loss)				185,471			185,471
Total comprehensive income (loss)							66,651
Ending balance at Dec. 31, 2010	35,441	797	1,235,445	2,180,843	178,097	(323,626)	3,271,556
Ending balance, shares at Dec. 31, 2010		79,666				(11,037)
Shares issued under employee and director stock plans		1	2,543			78	2,622
Shares issued under employee and director stock plans, shares		149				3
Stock-based compensation expense			10,159				10,159
Tax deficit from stock-based compensation			(16)				(16)
Distribution to noncontrolling interest, net of adjustments	(4,764)
Retained distribution noncontrolling interest	(1,257)
Noncontrolling earnings	4,303						4,303
Comprehensive income:
Currency translation adjustment					(42,006)		(42,006)
Pension prior service cost and actuarial gain or loss					(452)		(452)
Net income (loss)				173,922			173,922
Total comprehensive income (loss)							131,464
Ending balance at Dec. 31, 2011	$ 33,723	$ 798	$ 1,248,131	$ 2,354,765	$ 135,639	$ (323,548)	$ 3,415,785
Ending balance, shares at Dec. 31, 2011		79,815				(11,034)

[1] Amount represents the adjustment to fair value of a redeemable noncontrolling interest in a consolidated subsidiary of the Company.