Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income		$ (31,168)	$ 5,361	[1]
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment		(4,405)	6,024
Unrealized gain (loss) on cash flow hedges, net of tax expense (benefit) of $0 and $0		453	426
Pension and post-retirement benefit plans benefit (expense), net of tax expense (benefit): $36, and $159		(543)	920
Reclassification of pension liability adjustments to earnings, net of tax expense of ($4) and $5	[2]	71	152
Other comprehensive income		(4,424)	7,522
Comprehensive income		$ (35,592)	$ 12,883

[1] The balances as of January 1, 2017 and the year ended December 31, 2017 amounts have been adjusted to reflect the change in inventory accounting method, as described in Notes 1 and 6 to the Consolidated Financial Statements.

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