Goodwill and Other Intangible Assets (Schedule of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 46,855	$ 46,811
Accumulated Amortization	(8,047)	(6,646)
Net Carrying Amount	38,808	40,165
Non-compete agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	5 years	5 years
Gross Carrying Value	380	380
Accumulated Amortization	(370)	(367)
Net Carrying Amount	10	13
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	10 years	10 years
Gross Carrying Value	859	815
Accumulated Amortization	(441)	(412)
Net Carrying Amount	418	403
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	23 years	23 years
Gross Carrying Value	19,960	19,960
Accumulated Amortization	(3,032)	(2,488)
Net Carrying Amount	16,928	17,472
Supplier relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	5 years	5 years
Gross Carrying Value	350	350
Accumulated Amortization	(178)	(143)
Net Carrying Amount	172	207
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	17 years	17 years
Gross Carrying Value	6,280	6,280
Accumulated Amortization	(1,095)	(879)
Net Carrying Amount	5,185	5,401
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	18 years	18 years
Gross Carrying Value	19,026	19,026
Accumulated Amortization	(2,931)	(2,357)
Net Carrying Amount	$ 16,095	$ 16,669
Weighted Average [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	20 years