CONSOLIDATED STATEMENT OF SHAREHOLDERS EQUITY - USD ($) $ in Thousands	Total	Common stock	Capital in excess of par value	Retained earnings	Accumulated other comprehensive (loss) income	Treasury stock	Non-controlling interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative adjustment | Accounting Standards Update 2014-09	$ 2,068			$ 2,068
Beginning Balance at Dec. 31, 2017	1,689,294	$ 14,470	$ 162,827	3,870,621	$ (637,482)	$ (1,726,234)	$ 5,092
Beginning Balance, shares at Dec. 31, 2017						(36,910,809)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	325,324			324,281			1,043
Foreign currency translation adjustments	(98,048)				(98,048)
Gains (losses) on derivatives qualifying as hedges; net of tax	12,347				12,347
Pension and postretirement net liability	8,078				8,078
Cash dividends declared	(175,798)			(175,798)
Stock options/SSARs	3,355		1,188			$ 2,167
Stock options, shares						46,018
Treasury share repurchases, shares						(108,109)
Treasury share repurchases	(15,475)					$ (15,475)
Vested restricted stock units and awards	(3,203)		(10,896)			$ 7,693
Vested restricted stock units and awards, shares						164,140
Stock-based compensation	22,041		22,041
Issuance of equity	2,267,966		2,266,370
Issuance of equity, shares		1,596,000
Ending Balance at Sep. 30, 2018	4,037,949	$ 16,066	2,441,530	4,021,172	(715,105)	$ (1,731,849)	6,135
Ending Balance, shares at Sep. 30, 2018						(36,808,760)
Beginning Balance at Jun. 30, 2018	1,756,203	$ 14,470	167,432	3,992,452	(692,498)	$ (1,732,001)	6,348
Beginning Balance, shares at Jun. 30, 2018						(36,811,973)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	95,503			95,716			(213)
Foreign currency translation adjustments	(27,587)				(27,587)
Gains (losses) on derivatives qualifying as hedges; net of tax	2,421				2,421
Pension and postretirement net liability	2,559				2,559
Cash dividends declared	(66,906)			(66,906)
Stock options/SSARs	1,066		1,065			$ 1
Stock options, shares
Treasury share repurchases, shares
Treasury share repurchases	0
Vested restricted stock units and awards	(53)		(204)			$ 151
Vested restricted stock units and awards, shares						3,213
Stock-based compensation	6,867		6,867
Issuance of equity	2,267,966		2,266,370
Issuance of equity, shares		1,596,000
Ending Balance at Sep. 30, 2018	4,037,949	$ 16,066	2,441,530	4,021,172	(715,105)	$ (1,731,849)	6,135
Ending Balance, shares at Sep. 30, 2018						(36,808,760)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative adjustment | Accounting Standards Update 2016-02	23,094			23,094
Cumulative adjustment | Accounting Standards Update 2017-12	(981)			(981)
Beginning Balance at Dec. 31, 2018	$ 6,043,374	16,066	3,793,609	3,956,221	(702,227)	$ (1,030,718)	10,423
Beginning Balance, shares at Dec. 31, 2018	(21,906,935)					(21,906,935)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 374,493			372,330			2,163
Foreign currency translation adjustments	(176,490)				(176,490)
Gains (losses) on derivatives qualifying as hedges; net of tax	3,257				3,257
Pension and postretirement net liability	7,908				7,908
Cash dividends declared	(235,730)			(235,730)
Stock options/SSARs	6,334		5,664			$ 670
Stock options, shares						14,214
Vested restricted stock units and awards	(4,238)		(10,940)			$ 6,702
Vested restricted stock units and awards, shares						142,506
Stock-based compensation	26,426		26,426
Redeemable NCI	1,593		1,593
Dividends paid on noncontrolling interest and other	(2,052)			(635)			(1,417)
Ending Balance at Sep. 30, 2019	$ 6,066,988	16,066	3,816,352	4,114,299	(867,552)	$ (1,023,346)	11,169
Ending Balance, shares at Sep. 30, 2019	(21,750,215)					(21,750,215)
Beginning Balance at Jun. 30, 2019	$ 6,209,987	16,066	3,805,883	4,069,211	(668,359)	$ (1,023,422)	10,608
Beginning Balance, shares at Jun. 30, 2019						21,751,837
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	127,781			127,124			657
Foreign currency translation adjustments	(204,853)				(204,853)
Gains (losses) on derivatives qualifying as hedges; net of tax	2,939				2,939
Pension and postretirement net liability	2,721				2,721
Cash dividends declared	(80,027)			(80,027)
Stock options/SSARs	588		579			$ 9
Stock options, shares						212
Vested restricted stock units and awards	95		28			$ 67
Vested restricted stock units and awards, shares						1,410
Stock-based compensation	8,126		8,126
Redeemable NCI	1,736		1,736
Dividends paid on noncontrolling interest and other	(143)			(47)			(96)
Ending Balance at Sep. 30, 2019	$ 6,066,988	$ 16,066	$ 3,816,352	$ 4,114,299	$ (867,552)	$ (1,023,346)	$ 11,169
Ending Balance, shares at Sep. 30, 2019	(21,750,215)					(21,750,215)