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LEASES - Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Operating Leases    
Total right-of-use asset $ 39,885 $ 29,486
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Right-of-use assets Right-of-use assets
Total lease liability $ 40,271 $ 29,905
Field equipment    
Operating Leases    
Total right-of-use asset 29,312 27,537
Total lease liability 29,312 27,537
Finance Leases    
Right-of-use asset - field equipment 0 219
Lease liability - field equipment 0 117
Corporate leases    
Operating Leases    
Total right-of-use asset 9,484 1,481
Total lease liability 9,870 1,900
Vehicles    
Operating Leases    
Total right-of-use asset 1,089 468
Total lease liability $ 1,089 $ 468