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Fresh Start Accounting - Schedule of Changes in Other Assets (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Apr. 23, 2021
Dec. 31, 2020
Reorganization, Chapter 11 [Line Items]      
Change in other assets $ 84,041 $ 57,047 $ 200,329
Reorganization Adjustments | Reorganization, Chapter 11, Predecessor, before Adjustment      
Reorganization, Chapter 11 [Line Items]      
Reclassification of BOP lease asset to drilling and other property and equipment   (116,242)  
Reclassification of payment-in-kind upfront fee related to the Exit RCF from prepaid expenses and other current assets   3,478  
Record debt issuance costs related to the Exit RCF   6,659  
Write-off of Predecessor directors and officers tail insurance policy   (6,349)  
Change in other assets   $ (112,454)