Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2013

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Our financial assets (liabilities) carried at fair value measured on a recurring basis as of September 30, 2013 and December 31, 2012, consisted of the following (in thousands):

				Fair Value Measurements Using
	Total Fair			Quoted prices in		Significant other			Significant
	Value at			active markets		observable inputs			Unobservable inputs
Description	September 30, 2013			(Level 1)		(Level 2)			(Level 3)
Interest rate swap (1)	$	745		$	—	$	745		$	—
				Fair Value Measurements Using
	Total Fair			Quoted prices in		Significant other			Significant
	Value at			active markets		observable inputs			Unobservable inputs
Description	December 31, 2012			(Level 1)		(Level 2)			(Level 3)
Interest rate swap (1)	$	(1,788	)	$	—	$	(1,788	)	$	—

(1)    The fair value of the interest rate swap is determined based on forward yield curves.

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

Changes in the fair value of our contingent liability during the three and nine-month periods ended September 30, 2013, were as follows (in thousands):

	Three Months Ended			Nine Months Ended
	September 30,			September 30,
	2013			2013
Beginning balance	$	6,692		$	6,697
Fair value adjustments recorded to income during the period	(4,108		)	(4,075		)
Contingent payments made	(22		)	(60		)
Ending balance	$	2,562		$	2,562

Fair Value Inputs, Liabilities, Quantitative Information

The recurring Level 3 measurement of our contingent consideration liability includes the following significant unobservable inputs (amount in thousands):

Contingent consideration liability	Fair value at September 30, 2013		Valuation technique	Unobservable inputs	Range
Revenue-based payments	$	2,266	Discounted Cash Flow	Discount rate	11.0% - 15.0%
				Probability of milestone payment	90%
				Projected year of payments	2013-2028
Other payments	296		Discounted cash flow	Discount rate	5.4%
				Probability of milestone payment	100%
				Projected year of payments	2013-2015