Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 22,752		$ 13,472
Other comprehensive (loss) income, net of tax
Unrealized (loss) income on hedging activities, net of tax (1)	(27)	[1]	427	[1]
Foreign currency translation adjustments, net of tax (2)	(5,948)	[2]	(14,505)	[2]
Defined benefit pension and other postretirement benefits, net of tax (3)	(5,870)	[3]	2,410	[3]
Total other comprehensive loss, net of tax	(11,845)		(11,668)
Total comprehensive income	10,907		1,804
Unrealized (loss) income on hedging activities, tax	14		188
Foreign currency translation adjustment, tax	(198)		(101)
Defined benefit pension and other postretirement benefits, tax	$ (3,787)		$ 2,838

[1] Net of tax of $14 and $188 for the three months ended March 31, 2014 and 2013, respectively

[2] Net of tax of $(198) and $(101) for the three months ended March 31, 2014 and 2013, respectively.

[3] Net of tax of $(3,787) and $2,838 for the three months ended March 31, 2014 and 2013, respectively.