Property, Plant and Equipment, net - Schedule of Property Plant and Equipment (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Land and land improvements	$ 9,085	$ 7,565
Buildings and building improvements	7,311	7,265
Furniture and fixtures	1,608	1,236
Equipment	36,018	31,983
Leasehold improvements	6,998	6,382
Computer hardware and software	5,722	5,060
Construction and other assets in progress	1,927	1,002
Property, plant and equipment, gross	68,669	60,493
Less: Accumulated depreciation and amortization	(26,468)	(22,493)
Property, plant and equipment, net	$ 42,201	$ 38,000