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Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2013
Fair Value Disclosures [Abstract]  
Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis
The assets and liabilities measured at fair value on a recurring basis are as follows (in thousands):
 
As of September 30, 2013
 
Fair Value Measurements Using
 
Total
 
Quoted Prices in Active Markets for Identical Assets
 
Significant Other Observable Inputs
 
Significant Unobservable Inputs
 
 
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
 
Contingent consideration
$

 
$

 
$
(2,259
)
 
$
(2,259
)
 
 
 
 
 
 
 
 
 
As of December 31, 2012
 
Fair Value Measurements Using
 
Total
 
Quoted Prices in Active Markets for Identical Assets
 
Significant Other Observable Inputs
 
Significant Unobservable Inputs
 
 
(Level 1)
 
(Level 2)
 
(Level 3)
 
 
Contingent consideration
$

 
$

 
$
(7,577
)
 
$
(7,577
)
Schedule of Reconciliations of Liabilities Measured and Carried at Fair Value on Recurring Basis, with Significant Unobservable Inputs
Reconciliations of liabilities measured and carried at fair value on a recurring basis with the use of significant unobservable inputs (Level 3) are as follows (in thousands):
 
 
Three Months Ended
 
Nine Months Ended
 
September 30,
September 30,
 
2013
 
2012
 
2013
 
2012
Contingent consideration
 
 
 
 
 
 
 
Balance at beginning of period
$
(3,171
)
 
$
(9,317
)
 
$
(7,577
)
 
$
(9,856
)
Payments on contingent consideration

 

 
3,425

 

Fair value adjustment
1,039

 
1,038

 
1,931

 
1,408

Foreign currency translation adjustment
(127
)
 
(129
)
 
(38
)
 
40

Balance at end of period
$
(2,259
)
 
$
(8,408
)
 
$
(2,259
)
 
$
(8,408
)