Supplemental Information (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accrued Liabilities
Accrued liabilities		$ 287,313	$ 276,118
Accrued rebates		46,460	49,900
Accrued incentive compensation		41,168	37,626
Other Liabilities [Abstract]
Other liabilities		150,961	174,859
Non-current pension obligation		106,250	136,296
Other Income, Net
Interest income		6,034	3,468	$ 3,086
Dividend income		3,559	532	0
Foreign exchange currency gains (losses), net	[1]	1,828	(7,382)	(1,375)
Income from equity method investees		6,242	5,883	4,914
Impairment of equity method investment		(4,925)	(6,747)	0
Gain on acquisition and related expenses, net		20,430	0	0
Gain (losses) from sales of securities, net		3,798	1,212	(19)
Other		1,304	313	184
Other income (expense), net		38,270	(2,721)	6,790
Cash Flow Information
Interest paid, net of interest capitalized		31,946	35,336	16,426
Income taxes paid		314,186	314,745	$ 251,599
Fair value of assets acquired		44,013	961,823
Fair value of investment before business combination, net of preexisting balances		(10,352)	0
Noncontrolling Interest Acquired		(1,597)	0
Cash paid		(5,518)	(736,224)
Liabilities assumed		$ 26,546	$ 225,599

[1] Aggregate foreign exchange currency gains and losses included in the consolidated statements of operations for the years ended December 31, 2015, 2014 and 2013.