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Fair Value Measurement (Tables)
 6 Months Ended
Jun. 30, 2016
Fair Value Disclosures [Abstract]  
Financial liabilities measured at fair value on a recurring basis
 
June 30, 2016
 
Level 1
 
Level 2
 
Level 3
 
Fair Value
Contingent purchase price related to acquisitions
$
—

 
$
—

 
$
5,124

 
$
5,124

Total liabilities at fair value
$
—

 
$
—

 
$
5,124

 
$
5,124

 
December 31, 2015
 
Level 1
 
Level 2
 
Level 3
 
Fair Value
Contingent purchase price related to acquisitions
$
—

 
$
—

 
$
6,722

 
$
6,722

Total liabilities at fair value
$
—

 
$
—

 
$
6,722

 
$
6,722
Schedule of reconciliation of beginning and ending Level 3 financial liability balance
The table below sets forth a reconciliation of the Company’s beginning and ending Level 3 financial liability balance for the three and six months ended June 30, 2016 and 2015 (in thousands):
 
Three Months Ended
 
Six Months Ended
 
June 30,
 
June 30,
 
2016
 
2015
 
2016
 
2015
Balance, beginning of period
$
5,825

 
$
5,708

 
$
6,722

 
$
7,665

Payments of contingent purchase obligations
(798
)
 
(1,360
)
 
(798
)
 
(3,317
)
Adjustments to contingent purchase obligations (1)
97

 
(867
)
 
(800
)
 
(867
)
Balance, end of period
$
5,124

 
$
3,481

 
$
5,124

 
$
3,481

(1)
Adjustments to contingent purchase obligations are reported in other operating expenses in the condensed consolidated statements of operations.