Property and Equipment (Details) (USD $) In Thousands, unless otherwise specified						12 Months Ended				12 Months Ended				12 Months Ended				12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Sep. 30, 2010	Dec. 31, 2012 Land and improvements [Member]	Dec. 31, 2011 Land and improvements [Member]	Dec. 31, 2012 Land and improvements [Member] Minimum [Member]	Dec. 31, 2012 Land and improvements [Member] Maximum [Member]	Dec. 31, 2012 Buildings and improvements [Member]	Dec. 31, 2011 Buildings and improvements [Member]	Dec. 31, 2012 Buildings and improvements [Member] Minimum [Member]	Dec. 31, 2012 Buildings and improvements [Member] Maximum [Member]	Dec. 31, 2012 Machinery and equipment [Member]	Dec. 31, 2011 Machinery and equipment [Member]	Dec. 31, 2012 Machinery and equipment [Member] Minimum [Member]	Dec. 31, 2012 Machinery and equipment [Member] Maximum [Member]	Dec. 31, 2012 Leasehold improvements [Member]	Dec. 31, 2011 Leasehold improvements [Member]	Dec. 31, 2012 Computer software and licenses [Member]	Dec. 31, 2011 Computer software and licenses [Member]	Dec. 31, 2012 Computer software and licenses [Member] Minimum [Member]	Dec. 31, 2012 Computer software and licenses [Member] Maximum [Member]
Property and equipment [Abstract]
Useful life						10 years	15 years			15 years	30 years			3 years	7 years					3 years	7 years
Useful life of leasehold improvements																Life of lease
Property and equipment, gross	$ 184,748	$ 169,989		$ 6,295	$ 6,793			$ 17,917	$ 17,334			$ 89,869	$ 89,052			$ 21,478	$ 19,815	$ 49,189	$ 36,995
Accumulated depreciation and amortization	(119,257)	(109,925)
Total	65,491	60,064	(362)
Interest capitalized																		$ 846	$ 0