Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS (Details)

v3.20.2
FAIR VALUE MEASUREMENTS (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jan. 02, 2020
Sep. 30, 2020
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Liabilities:          
Fair value of contingent consideration asset $ 23,100   $ 19,700    
Contingent consideration, gain (loss) due to change in value   $ (200) (3,100)    
Contingent consideration, settlements     300    
Asset retirement obligation capitalized     2,343 $ 5,769  
Level 1          
Assets:          
Derivative Instruments   0 0   $ 0
Liabilities:          
Derivative Instruments   0 0   0
Level 2          
Assets:          
Derivative Instruments   7,343 7,343   126,764
Liabilities:          
Derivative Instruments   87,967 87,967   53,438
Level 3          
Assets:          
Derivative Instruments   0 0   0
Liabilities:          
Derivative Instruments   $ 0 0   $ 0
Prepaid Expenses and Other Current Assets          
Liabilities:          
Fair value of contingent consideration asset     1,000    
Other Noncurrent Assets          
Liabilities:          
Fair value of contingent consideration asset     $ 18,700