Property and Equipment, Net - Property and Equipment Table (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 367,190	$ 357,260
Less: Accumulated depreciation	188,030	176,130
Property and equipment, net	179,160	181,130
Land and Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	14,910	14,820
Building [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	71,100	67,790
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 281,180	$ 274,650