Fair Value Measurements - Level 3 Rollforward (Details) (Fair Value, Inputs, Level 3 [Member], USD $)	3 Months Ended
	Mar. 31, 2014
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 4,876
Interest Accretion	16
Payments	(62)
Ending Balance	4,830
Summit Earnout [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	4,697
Interest Accretion	12
Payments	0
Ending Balance	4,709
Non-competition Agreement Obligation [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	179
Interest Accretion	4
Payments	(62)
Ending Balance	$ 121