CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Thousands, unless otherwise specified	Total	Retained Earnings	Accumulated Other Comprehensive Income/(Loss)	Common Stock Par Value	Treasury Stock	Capital in Excess of Par Value	Non-Controlling Interest
Balance at Dec. 31, 2010	$ 1,279,774	$ 1,279,013	$ 123,766	$ 817	$ (443,019)	$ 318,346	$ 851
Increase (Decrease) in Stockholders' Equity
Net income (loss)	95,755	95,766					(11)
Foreign currency translation adjustments	106,004		105,994				10
Changes in unrecognized pension gains/losses and related amortization, net of tax	784		784
Changes in treasury locks, net of tax	43		43
Net gain (loss) on derivatives, net of tax	6		6
Stock option exercises & restricted stock vestings	28,029			6	1	28,022
Cash dividends declared on common stock	(24,100)	(24,100)
Non-Controlling interest distribution	(27)						(27)
Treasury stock purchased	(40,826)				(40,826)
Balance at Jun. 30, 2011	1,445,442	1,350,679	230,593	823	(483,844)	346,368	823
Balance at Dec. 31, 2011	1,290,572	1,409,388	60,318	827	(545,612)	364,855	796
Increase (Decrease) in Stockholders' Equity
Net income (loss)	85,465	85,495					(30)
Foreign currency translation adjustments	(28,822)		(28,817)				(5)
Changes in unrecognized pension gains/losses and related amortization, net of tax	1,492		1,492
Changes in treasury locks, net of tax	180		180
Net gain (loss) on derivatives, net of tax	(7)		(7)
Stock option exercises & restricted stock vestings	38,301			18	3	38,280
Cash dividends declared on common stock	(29,175)	(29,175)
Treasury stock purchased	(10,096)				(10,096)
Balance at Jun. 30, 2012	$ 1,347,910	$ 1,465,708	$ 33,166	$ 845	$ (555,705)	$ 403,135	$ 761