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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2018
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, 2018 and 2017, and the level they fall within the fair value hierarchy (in thousands):
 
 
 
 
 
 
Fair Value
 
 
 
 
Fair Value
 
December 31,
Financial Instrument
 
Financial Statement Classification
 
Hierarchy
 
2018
 
2017
Contingent consideration
 
Accounts payable and accrued expenses
 
Level 3
 
$
594

 
$
2,724

Contingent consideration
 
Other noncurrent liabilities
 
Level 3
 
83

 
1,502

Interest rate swap agreement
 
Other assets
 
Level 2
 

 
88

Interest rate cap agreement
 
Other assets
 
Level 2
 

 
285