Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Consolidated Statements of Comprehensive (Loss) Income
Net (loss) income		$ (44,445)	$ 25,656	$ 29,290
Other comprehensive loss, net of tax:
Foreign currency translation adjustment		(6,947)	(4,863)	(3,475)
Unrealized loss on cash flow hedges, net of tax benefit of $76		(121)	0	0
Pension and post-retirement benefit plans, net of tax expense (benefit): $208, ($1,383), and $1,199		631	(2,631)	2,258
Reclassification of pension liability adjustments to earnings, net of tax expense of $160, $63 and $134	[1]	389	185	303
Other comprehensive loss, net of tax		(6,048)	(7,309)	(914)
Comprehensive (loss) income		$ (50,493)	$ 18,347	$ 28,376

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