CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Retained Earnings	Accumulated Other Comprehensive Income/(Loss)	Common Stock Par Value	Treasury Stock	Capital in Excess of Par Value	Non-Controlling Interest	Total
Balance at Dec. 31, 2013	$ 1,619,419	$ 109,751	$ 853	$ (738,558)	$ 488,292	$ 551	$ 1,480,308
Increase (Decrease) in Stockholders' Equity
Net Income	150,060					52	150,112
Foreign currency translation adjustments		(123,354)				(5)	(123,359)
Changes in unrecognized pension losses and related amortization, net of tax		2,144					2,144
Changes in treasury locks, net of tax		18					18
Stock option exercises & restricted stock vestings			6	1,822	43,287		45,115
Cash dividends declared on common stock	(52,943)						(52,943)
Treasury stock purchased				(90,517)			(90,517)
Balance at Sep. 30, 2014	1,716,536	(11,441)	859	(827,253)	531,579	598	1,410,878
Balance at Dec. 31, 2014	1,740,005	(110,045)	862	(1,026,117)	498,702	509	1,103,916
Increase (Decrease) in Stockholders' Equity
Net Income	155,957					(55)	155,902
Foreign currency translation adjustments		(115,022)				(8)	(115,030)
Changes in unrecognized pension losses and related amortization, net of tax		3,516					3,516
Changes in treasury locks, net of tax		19					19
Stock option exercises & restricted stock vestings			10	3,936	60,771		64,717
Cash dividends declared on common stock	(52,512)						(52,512)
Non controlling interest repurchased					(476)	(148)	(624)
Treasury stock purchased				(50,000)	50,000
Treasury shares retired	(628,481)		(200)	754,118	(125,437)
Balance at Sep. 30, 2015	$ 1,214,969	$ (221,532)	$ 672	$ (318,063)	$ 483,560	$ 298	$ 1,159,904