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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Leases (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Accounting Policies [Abstract]      
Operating lease, right-of-use assets $ 6,879   $ 6,450
Prior advance notice period for cancellation of rig contracts 45 days    
Cash payments for operating leases associated with right-of-use assets $ 700 $ 700  
Operating lease, weighted average remaining lease term 2 years 6 months   2 years 8 months 12 days
Operating lease, weighted average discount rate, percent 2.70%   2.70%
Expected future payments for contracted drilling services $ 11,600