Goodwill and Intangibles Assets (Details 1) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Summary of Intangible Assets
Gross Carrying Amount	$ 49,697	$ 16,800
Accumulated Amortization	(4,629)	(2,769)
Finite intangible assets, Net Carrying Amount	45,068	14,031
Intangible assets gross excluding goodwill	50,097	17,200
Indefinite-lived Intangible Assets
Indefinite-lived intangible asset useful life	Indefinite	Indefinite
Intangible assets, net	45,468	14,431
Other intellectual property [Member]
Indefinite-lived Intangible Assets
Indefinite intangible assets, Net Carrying Amount	400	400
Customer relationships [Member]
Summary of Intangible Assets
Gross Carrying Amount	33,757	13,317
Accumulated Amortization	(3,438)	(2,344)
Finite intangible assets, Net Carrying Amount	30,319	10,973
Customer relationships [Member] | Maximum [Member]
Summary of Intangible Assets
Finite intangible assets, useful life	11 years	3 years
Customer relationships [Member] | Minimum [Member]
Summary of Intangible Assets
Finite intangible assets, useful life	3 years	11 years
Trademarks/trade names [Member]
Summary of Intangible Assets
Gross Carrying Amount	8,524	1,547
Accumulated Amortization	(490)	(243)
Finite intangible assets, Net Carrying Amount	8,034	1,304
Trademarks/trade names [Member] | Maximum [Member]
Summary of Intangible Assets
Finite intangible assets, useful life	11 years	3 years
Trademarks/trade names [Member] | Minimum [Member]
Summary of Intangible Assets
Finite intangible assets, useful life	3 years	11 years
Technology [Member]
Summary of Intangible Assets
Finite intangible assets, useful life		10 years
Gross Carrying Amount	3,459	1,559
Accumulated Amortization	(320)	(149)
Finite intangible assets, Net Carrying Amount	3,139	1,410
Technology [Member] | Maximum [Member]
Summary of Intangible Assets
Finite intangible assets, useful life	10 years
Technology [Member] | Minimum [Member]
Summary of Intangible Assets
Finite intangible assets, useful life	5 years
Non-compete agreements [Member]
Summary of Intangible Assets
Gross Carrying Amount	3,916	336
Accumulated Amortization	(373)	(29)
Finite intangible assets, Net Carrying Amount	3,543	307
Non-compete agreements [Member] | Maximum [Member]
Summary of Intangible Assets
Finite intangible assets, useful life	5 years	2 years
Non-compete agreements [Member] | Minimum [Member]
Summary of Intangible Assets
Finite intangible assets, useful life	2 years	5 years
Intellectual property [Member]
Summary of Intangible Assets
Finite intangible assets, useful life	5 years	5 years
Gross Carrying Amount	41	41
Accumulated Amortization	(8)	(4)
Finite intangible assets, Net Carrying Amount	$ 33	$ 37