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FAIR VALUE MEASUREMENTS (Tables)
 9 Months Ended
Sep. 30, 2020
Fair Value Disclosures [Abstract]  
Financial assets and liabilities measured at fair value on a recurring basis
The following tables summarize our deferred compensation investments measured at fair value on a recurring basis (in thousands):
  Fair Value Measurements at Reporting Date Using
 September 30,
2020		Quoted Prices in
Active Markets
for Identical
Assets (Level 1)		Significant
Other
Observable
Inputs (Level 2)		Significant
Unobservable
Inputs
(Level 3)
Financial assets:    
Deferred compensation assets$487 $261 $226 $— 
  Fair Value Measurements at Reporting Date Using
 December 31, 2019Quoted Prices in
Active Markets
for Identical
Assets (Level 1)		Significant
Other
Observable
Inputs (Level 2)		Significant
Unobservable
Inputs
(Level 3)
Financial assets:    
Deferred compensation assets$1,156 $338 $818 $—