Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income		$ 28,848	$ 29,076
Other comprehensive income (loss), net of tax
Unrealized (loss) gain on hedging activities, net of tax (1)	[1]	(148)	112
Foreign currency translation adjustments, net of tax (2)	[2]	20,713	(39,757)
Defined benefit pension and other postretirement benefits, net of tax (3)	[3]	1,318	3,661
Total other comprehensive income (loss), net of tax		21,883	(35,984)
Total comprehensive income (loss)		50,731	(6,908)
Unrealized (loss) income on hedging activities, tax		(62)	(41)
Foreign currency translation adjustment, tax		156	(2,211)
Defined benefit pension and other postretirement benefits, tax		$ 935	$ 1,346

[1] Net of tax of $(62) and $(41) for the three months ended March 31, 2016 and 2015, respectively.

[2] Net of tax of $156 and $(2,211) for the three months ended March 31, 2016 and 2015, respectively.

[3] Net of tax of $935 and $1,346 for the three months ended March 31, 2016 and 2015, respectively.