Fair Value Disclosures - Quantitative Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
	Jun. 30, 2013	Sep. 30, 2013
Summit Earnout [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair Value Inputs Discount Rate		14.50%
Fair Value Inputs Weighted Average Probabilities		As of September 30, 2013, the probabilities applied to the payout scenarios ranged from 15% to 70%, depending on the Company’s estimate of the likelihood of each payout scenario.
Fair Value Measurements Valuation Techniques		Discounted cash flow
Acquisition-related Consideration		$ 5,684
Change in Fair Value Estimate	675
Non-competition Agreement Obligation [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair Value Inputs Discount Rate		14.00%
Fair Value Measurements Valuation Techniques		Discounted cash flow
Acquisition-related Consideration		$ 237