Accumulated Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at			$ (16,926)
Balance at	$ (6,047)		(6,047)
Balance at			(1,510)
Balance at	(1,442)		(1,442)
Balance at			(15,416)
Other comprehensive income (loss), net of tax	(94)	$ (2,966)	10,811	$ (4,407)
Balance at	(4,605)		(4,605)
Accumulated Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at			(12,793)
Other comprehensive income adjustments			10,638
Balance at	(2,155)		(2,155)
Other comprehensive income (loss), net of tax			10,638
Accumulated Defined Benefit Plans Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive income adjustments			241
Other comprehensive income (loss), tax			68
Other comprehensive income (loss), net of tax			173
Minimum Pension Liability Adjustment | Accumulated Defined Benefit Plans Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at			118
Other comprehensive income adjustments			57
Balance at	175		175
Postretirement Health Coverage | Accumulated Defined Benefit Plans Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at			(4,251)
Other comprehensive income adjustments			184
Balance at	$ (4,067)		$ (4,067)