Intangible Assets - Summary of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Goodwill And Intangible Assets Disclosure [Abstract]
Trade Name	$ 5,700	$ 5,700
Customer Relationships	9,100	9,100
Intangible Assets, Gross	14,800	14,800
Less Accumulated Amortization	(3,932)	(3,313)
Intangible Assets, net	$ 10,868	$ 11,487
Estimated Useful Life in Years	11 years