Consolidated Statements of Comprehensive Income Statement (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income	$ 24,664	$ 39,979	$ 46,427
Other comprehensive income:
Foreign currency translation adjustment	(870)	958	1,665
Derivative and hedging activity, net of tax benefit (expense) of $385, ($1,047) and $581	(715)	1,946	(1,078)
Pension and post employment benefit adjustment, net of tax of $7,676, $12,292 and $3,119	(14,629)	(23,503)	(5,519)
Net change in accumulated other comprehensive income	(16,214)	(20,599)	(4,932)
Comprehensive income	$ 8,450	$ 19,380	$ 41,495