Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS (Details)

v3.20.1
FAIR VALUE MEASUREMENTS (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jan. 02, 2020
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Liabilities:        
Fair value of contingent consideration asset $ 23,100 $ 23,000    
Contingent consideration, gain (loss) due to change in value   200    
Contingent consideration, settlements   300    
Asset retirement obligation capitalized   381 $ 969  
Level 1        
Assets:        
Derivative Instruments   0   $ 0
Liabilities:        
Derivative Instruments   0   0
Level 2        
Assets:        
Derivative Instruments   171,755   126,764
Liabilities:        
Derivative Instruments   70,896   53,438
Level 3        
Assets:        
Derivative Instruments   0   0
Liabilities:        
Derivative Instruments   0   $ 0
Prepaid Expenses and Other Current Assets        
Liabilities:        
Fair value of contingent consideration asset   600    
Other Noncurrent Assets        
Liabilities:        
Fair value of contingent consideration asset   $ 22,400