Property and Equipment (Details) (USD $) In Thousands, unless otherwise specified							12 Months Ended			12 Months Ended				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Land	Dec. 31, 2012 Land	Dec. 31, 2013 Building	Dec. 31, 2012 Building	Dec. 31, 2013 Building Maximum [Member]	Dec. 31, 2013 Machinery and equipment	Dec. 31, 2012 Machinery and equipment	Dec. 31, 2013 Machinery and equipment Minimum [Member]	Dec. 31, 2013 Machinery and equipment Maximum [Member]	Dec. 31, 2013 Office equipment and other	Dec. 31, 2012 Office equipment and other	Dec. 31, 2013 Office equipment and other Minimum [Member]	Dec. 31, 2013 Office equipment and other Maximum [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 469,305	$ 402,085	$ 25,254	$ 23,194	$ 115,206	$ 109,587		$ 237,179	$ 186,303			$ 91,666	$ 83,001
Less accumulated depreciation	(235,264)	(190,470)
Property and equipment, net	$ 234,041	$ 211,615
Property and equipment estimated useful life							30 years			3 years	7 years			3 years	10 years