CONSOLIDATED STATEMENT OF SHAREHOLDERS EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common stock [Member]	Capital in excess of par value [Member]	Retained earnings [Member]	Accumulated other comprehensive (loss) income [Member]	Treasury stock [Member]	Noncontrolling interest [Member]
Balance at Dec. 31, 2011
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 254,134			$ 254,134			$ 752
Cumulative translation adjustment	17,687				17,687
Gains (losses) on derivatives qualifying as hedges; net of tax	(4,455)				(4,455)
Pension liability and postretirement adjustment; net of tax	(41,548)				(41,548)
Cash dividends declared				(105,861)
Stock options/SSAR's, value			4,248			13,144
Stock options/SSAR's, shares						336,296
Vested restricted stock units and awards, value			23,113			10,298
Vested restricted stock units and awards, shares						263,645
Stock-based compensation, value			17,738			2,124
Stock-based compensation, shares						105,725
Balance at Dec. 31, 2012		14,470	127,504	2,841,166	(403,625)	(1,330,707)	3,747
Balance, shares at Dec. 31, 2012						(34,134,966)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	353,544			353,544			232
Cumulative translation adjustment	(10,556)				(10,556)
Gains (losses) on derivatives qualifying as hedges; net of tax	(3,794)				(3,794)
Pension liability and postretirement adjustment; net of tax	25,264				25,264
Cash dividends declared				(119,053)
Stock options/SSAR's, value			10,395			6,196
Stock options/SSAR's, shares						157,403
Treasury share repurchases, shares						(655,907)
Treasury share repurchases, value						(51,363)
Vested restricted stock units and awards, value			26,735			6,277
Vested restricted stock units and awards, shares						159,559
Stock-based compensation, value			20,297			3,792
Stock-based compensation, shares						96,317
Balance at Dec. 31, 2013	1,467,051	14,470	131,461	3,075,657	(392,711)	(1,365,805)	3,979
Balance, shares at Dec. 31, 2013	(34,377,594)					(34,377,594)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	414,543			414,543			149
Cumulative translation adjustment	(69,064)				(69,064)
Gains (losses) on derivatives qualifying as hedges; net of tax	16,383				16,383
Pension liability and postretirement adjustment; net of tax	(95,038)				(95,038)
Cash dividends declared				(139,466)
Stock options/SSAR's, value			9,770			3,590
Stock options/SSAR's, shares						87,706
Treasury share repurchases, shares						(927,339)
Treasury share repurchases, value						(88,959)
Vested restricted stock units and awards, value			23,871			4,953
Vested restricted stock units and awards, shares						136,627
Stock-based compensation, value			22,648
Stock-based compensation, shares
Balance at Dec. 31, 2014	$ 1,522,689	$ 14,470	$ 140,008	$ 3,350,734	$ (540,430)	$ (1,446,221)	$ 4,128
Balance, shares at Dec. 31, 2014	(35,080,600)					(35,080,600)