Fresh Start Accounting - Schedule of Changes in Long-Term Debt (Detail) - Reorganization Adjustments $ in Thousands	Apr. 23, 2021 USD ($)
Fresh Start Adjustment [Line Items]
Borrowings drawn under the Exit Facilities	$ 200,000
Record payment-in-kind upfront fee related to the Exit RCF	3,478
Issuance of Exit Notes for cash	75,000
Record 1% premium associated with Exit Notes	749
Record backstop commitment premium to payment-in-kind Exit Notes	10,424
Record debt issuance costs related to Exit Term Loans and Exit Notes	(3,669)
Change in long-term debt	$ 285,982