Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income	$ 194,490	$ 114,345	$ 108,459
Foreign currency translation	(1,414)	(4,632)	(25,965)
Foreign currency hedging instruments, net of tax of $1.6 million, $0.0 million, and $0.0 million, respectively	2,467
Adjustments to pension and postretirement liability, net of tax of $3.2 million, $4.8 million, and $1.0 million, respectively	(8,909)	(9,158)	2,432
Other comprehensive loss, net of tax	(7,856)	(13,790)	(23,533)
Comprehensive income	$ 186,634	$ 100,555	$ 84,926