Annual report pursuant to Section 13 and 15(d)

LEASES - Narrative (Details)

v3.20.4
LEASES - Narrative (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
USD ($)
optionToRenew
Dec. 31, 2019
USD ($)
Jan. 01, 2019
USD ($)
Dec. 31, 2018
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Operating lease right-of-use assets $ 20,210 $ 23,951 $ 23,100 $ 23,951
Lease liability 21,404 25,154    
Operating lease, cost 6,600      
Operating leases, rent expense   6,700    
Short-term lease, cost 400 200    
Sublease income $ 100 100    
Asset retirement obligations incurred   600    
Asset retirement obligations settled   $ 300    
Minimum        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Options to renew | optionToRenew 1      
Lease extension, minimum term 1 year      
Accounting Standards Update 2016-02        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Operating lease right-of-use assets     23,100  
Lease liability     $ 24,000