Goodwill and Other Intangible Assets (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 160,617	$ 95,771
Accumulated Amortization	(19,240)	(13,637)
Net Carrying Amount	141,377	82,134
Non-compete agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	7,004	4,143
Accumulated Amortization	(1,503)	(705)
Net Carrying Amount	5,501	3,438
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	531	564
Accumulated Amortization	(169)	(189)
Net Carrying Amount	362	375
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	96,017	44,450
Accumulated Amortization	(7,247)	(4,679)
Net Carrying Amount	88,770	39,771
Supplier relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	350	350
Accumulated Amortization	(301)	(268)
Net Carrying Amount	49	82
Trademarks and trade names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	14,308	10,765
Accumulated Amortization	(2,413)	(1,855)
Net Carrying Amount	11,895	8,910
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	42,407	35,499
Accumulated Amortization	(7,607)	(5,941)
Net Carrying Amount	$ 34,800	$ 29,558
Weighted Average [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	15 years
Weighted Average [Member] | Non-compete agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	4 years	5 years
Weighted Average [Member] | Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	10 years	10 years
Weighted Average [Member] | Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	16 years	19 years
Weighted Average [Member] | Supplier relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	5 years	5 years
Weighted Average [Member] | Trademarks and trade names [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	13 years	14 years
Weighted Average [Member] | Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period In Years	13 years	14 years