Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Consolidated Statements of Comprehensive Income
Net income	$ 25,656		$ 29,290		$ 16,188
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustment	(4,863)		(3,475)		1,724
Pension and post-retirement benefit plans, net of tax (benefit) expense: $(1,383), $1,199, and ($481)	(2,631)		2,258		(1,043)
Reclassification of pension liability adjustments to earnings, net of tax expense of $63, $134 and $125	185	[1]	303	[1]	278	[1]
Other comprehensive (loss) income, net of tax	(7,309)		(914)		959
Comprehensive income	$ 18,347		$ 28,376		$ 17,147

[1] Reclassifications out of accumulated other comprehensive income for pension obligations are charged to selling and administrative expense.