Goodwill and Other Intangible Assets (Schedule of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		9 Months Ended
	Dec. 31, 2011	Sep. 30, 2012	Dec. 31, 2011 Non-compete agreements [Member]	Sep. 30, 2012 Non-compete agreements [Member]	Dec. 31, 2011 Patents [Member]	Sep. 30, 2012 Patents [Member]	Dec. 31, 2011 Customer relationships [Member]	Sep. 30, 2012 Customer relationships [Member]	Dec. 31, 2011 Supplier relationships [Member]	Sep. 30, 2012 Supplier relationships [Member]	Dec. 31, 2011 Trademarks [Member]	Sep. 30, 2012 Trademarks [Member]	Dec. 31, 2011 Technology [Member]	Sep. 30, 2012 Technology [Member]	Sep. 30, 2012 Weighted Average [Member]	Sep. 30, 2012 Weighted Average [Member] Non-compete agreements [Member]	Sep. 30, 2012 Weighted Average [Member] Patents [Member]	Sep. 30, 2012 Weighted Average [Member] Customer relationships [Member]	Sep. 30, 2012 Weighted Average [Member] Supplier relationships [Member]	Sep. 30, 2012 Weighted Average [Member] Trademarks [Member]	Sep. 30, 2012 Weighted Average [Member] Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	20 years		5 years		10 years		23 years		5 years		17 years		18 years		20 years	5 years	10 years	23 years	5 years	17 years	18 years
Gross Carrying Value	$ 46,552	$ 46,757	$ 380	$ 380	$ 125	$ 125	$ 19,960	$ 19,960	$ 350	$ 350	$ 6,280	$ 6,280	$ 19,457	$ 19,662
Accumulated Amortization	(3,681)	(5,783)	(361)	(366)	(125)	(125)	(1,402)	(2,217)	(73)	(126)	(447)	(771)	(1,273)	(2,178)
Net Carrying Amount	$ 42,871	$ 40,974	$ 19	$ 14			$ 18,558	$ 17,743	$ 277	$ 224	$ 5,833	$ 5,509	$ 18,184	$ 17,484