CONSOLIDATED STATEMENT OF SHAREHOLDERS EQUITY - USD ($) $ in Thousands	Total	Common stock [Member]	Capital in excess of par value [Member]	Retained Earnings [Member]	Accumulated other comprehensive (loss) income [Member]	Treasury stock [Member]	Parent [Member]	Noncontrolling interest [Member]
Balance at Dec. 31, 2013		$ 14,470	$ 131,461	$ 3,075,657	$ (392,711)	$ (1,365,805)	$ 1,467,051	$ 3,979
Balance, Shares at Dec. 31, 2013						(34,377,594)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 414,543			414,543			414,692	149
Cumulative translation adjustment	(69,064)				(69,064)		(69,064)
Gains (losses) on derivatives qualifying as hedges; net of tax	16,383				16,383		16,383
Pension liability and postretirement adjustment; net of tax	(95,038)				(95,038)		(95,038)
Cash dividends declared				(139,466)			(139,466)
Stock options/SSAR's, value			9,770			$ 3,590	13,360
Stock options/SSAR's, shares						87,706
Treasury share repurchases, shares						(927,339)
Treasury share repurchases, value						$ (88,959)	(88,959)
Vested restricted stock units and awards, value			(23,871)			$ 4,953	(18,918)
Vested restricted stock units and awards, shares						136,627
Stock-based compensation, value			22,648				22,648
Stock-based compensation, shares
Balance at Dec. 31, 2014		14,470	140,008	3,350,734	(540,430)	$ (1,446,221)	1,522,689	4,128
Balance, shares at Dec. 31, 2014						(35,080,600)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	419,247			419,247			419,791	544
Cumulative translation adjustment	(124,157)				(124,157)		(124,157)
Gains (losses) on derivatives qualifying as hedges; net of tax	(2,970)				(2,970)		(2,970)
Pension liability and postretirement adjustment; net of tax	54,117				54,117		54,117
Cash dividends declared				(165,727)			(165,727)
Stock options/SSAR's, value			6,099			$ 7,085	13,184
Stock options/SSAR's, shares						194,016
Treasury share repurchases, shares						(1,074,210)
Treasury share repurchases, value						$ (121,193)	(121,193)
Vested restricted stock units and awards, value			(28,465)			$ 4,560	(23,905)
Vested restricted stock units and awards, shares						124,895
Stock-based compensation, value			23,160			$ 0	23,160
Stock-based compensation, shares						0
Balance at Dec. 31, 2015	$ 1,594,989	14,470	140,802	3,604,254	(613,440)	$ (1,555,769)	1,594,989	4,672
Balance, shares at Dec. 31, 2015	(35,835,899)					(35,835,899)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 405,031			405,031			405,249	218
Cumulative translation adjustment	(54,526)				(54,526)		(54,526)
Gains (losses) on derivatives qualifying as hedges; net of tax	(1,797)				(1,797)		(1,797)
Pension liability and postretirement adjustment; net of tax	(10,332)				(10,332)		(10,332)
Cash dividends declared				(190,750)			(190,750)
Stock options/SSAR's, value			8,952			$ 1,335	10,287
Stock options/SSAR's, shares						30,015
Treasury share repurchases, shares						(1,058,018)
Treasury share repurchases, value						$ (127,443)	(127,443)
Vested restricted stock units and awards, value			21,860			$ 2,730	(19,130)
Vested restricted stock units and awards, shares						218,749
Stock-based compensation, value			24,587			$ 0	24,587
Stock-based compensation, shares						0
Balance at Dec. 31, 2016	$ 1,631,134	$ 14,470	$ 152,481	$ 3,818,535	$ (680,095)	$ (1,679,147)	$ 1,631,134	$ 4,890
Balance, shares at Dec. 31, 2016	(36,645,153)					(36,645,153)