Segment Reporting - Geographic Schedul of Revenue and Long-lived Assets (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 164,151	$ 184,676	$ 199,703	$ 222,228	$ 231,466	$ 245,469	$ 249,492	$ 253,410	$ 770,758	$ 979,837	$ 1,053,066
Long-Lived Assets	71,393				72,835				71,393	72,835	76,694
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									554,943	736,236	817,714
Long-Lived Assets	59,603				58,278				59,603	58,278	63,667
Foreign [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									215,815	243,601	235,352
Long-Lived Assets	$ 11,790				$ 14,557				$ 11,790	$ 14,557	$ 13,027