Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at begging of period	$ (16,926)	$ (11,268)
Reclassified loss on cash flow hedge from other comprehensive (loss) income		225
Other Comprehensive Income (Loss), before Tax	(1,180)	(345)
Balance at end of period	(8,801)	(16,926)	$ (11,268)
Tax (Benefit) Expense
Balance at beginning of period	(1,510)	(1,717)
Reclassified loss on cash flow hedge from other comprehensive (loss) income		82
Minimum pension and post retirement health care plan adjustments	430	125
Balance at end of period	(1,080)	(1,510)	(1,717)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	(15,416)	(9,551)
Reclassified loss on cash flow hedge from other comprehensive (loss) income		143
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Net of Tax	750	220
Other Comprehensive Income (Loss), Net of Tax	(7,695)	5,865	5,966
Balance at end of period	(7,721)	(15,416)	(9,551)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at begging of period	(12,793)	(6,565)
Other Comprehensive Income (Loss), before Tax	6,945	6,228
Balance at end of period	(5,848)	(12,793)	(6,565)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Other Comprehensive Income (Loss), Net of Tax	6,945	6,228
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at begging of period	0	(225)
Reclassified loss on cash flow hedge from other comprehensive (loss) income		225
Balance at end of period	0	0	(225)
Accumulated Defined Benefit Plans Adjustment | Minimum Pension Liability Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at begging of period	118	43
Other Comprehensive Income (Loss), before Tax	(79)	(75)
Balance at end of period	197	118	43
Accumulated Defined Benefit Plans Adjustment | Unamortized Post-Retirement Health Care Costs
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at begging of period	(4,251)	(4,521)
Other Comprehensive Income (Loss), before Tax	(1,101)	(270)
Balance at end of period	$ (3,150)	$ (4,251)	$ (4,521)