Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition [Line Items]
Intangible assets, gross	$ 7,570	$ 0
Accumulated amortization	314	0
Intangible assets, net	7,256	0
Amortization expense	314	0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2013	1,258
2014	1,258
2015	1,258
2016	1,258
Thereafter	2,224
Customer relationships [Member]
Business Acquisition [Line Items]
Intangible assets, gross	5,100	0
Estimated useful life of intangible asset	5 years
Affiliate network [Member]
Business Acquisition [Line Items]
Intangible assets, gross	1,710	0
Estimated useful life of intangible asset	12 years
Trademarks [Member]
Business Acquisition [Line Items]
Intangible assets, gross	$ 760	$ 0
Estimated useful life of intangible asset	8 years