Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net income	$ 1,989	$ 641
Other comprehensive income (loss):
Pension and other postretirement benefit adjustments, net of tax	2,671	2,207
Change in fair value of derivative instruments, net of tax	1,045	(532)
Foreign currency translation adjustments	(2,925)	3,437
Other comprehensive income, net of tax	791	5,112
Comprehensive income	$ 2,780	$ 5,753