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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2017
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities
The following table summarizes the financial assets and liabilities measured at fair value on a recurring basis as of December 31, 2017 and 2016, and the level they fall within the fair value hierarchy (in thousands):
 
 
 
 
 
 
Fair Value
 
 
 
 
 
Fair Value
 
December 31,
 
Description of Financial Instrument
 
Financial Statement Classification
 
Hierarchy
 
2017
 
2016
 
Contingent consideration
 
Accounts payable and accrued expenses
 
Level 3
 
$
2,724

 
$
3,590

 
Contingent consideration
 
Other noncurrent liabilities
 
Level 3
 
1,502

 
1,669

 
Interest rate swap agreement
 
Other assets
 
Level 2
 
88

 

 
Interest rate cap agreement
 
Other assets
 
Level 2
 
285