Amortization of deferred financing fees.

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Debt default final judgments by court excluding covered by insurance.

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Debt default unpaid amount after maturity.

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Debt Disclosure [Line Items]

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Debt instrument equity offering redemption price percentage of principal amount.

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Debt instrument issue price percentage.

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Debt instrument purchase price in cash principal amount percentage.

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Maturity year of debt instrument.

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Percentage of aggregate principal amount outstanding.

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Proceeds from sale of assets threshold amount.

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Write off of original debt issuance cost.

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Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.

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Face (par) amount of debt instrument at time of issuance.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Description of the frequency of periodic payments (monthly, quarterly, annual).

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Contractual interest rate for funds borrowed, under the debt agreement.

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Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Percentage of principal amount of debt redeemed.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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LONG-TERM DEBT - Additional Information (Detail) - USD ($)		3 Months Ended		9 Months Ended
	May 11, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Debt Disclosure [Line Items]
Write off unamortized deferred financing fees				$ 13,100,000
Write off of original debt issuance cost				8,500,000
Amortization of deferred financing fees		$ 300,000	$ 1,000,000.0	$ 2,000,000.0	$ 1,800,000
Events of Default
Debt Disclosure [Line Items]
Aggregate principal amount outstanding percentage, 30 days and 60 days after receipt of written notice				30.00%
Covenant description				covenants in the 2029 Indenture beyond the applicable cure period following notice by Wilmington or the holders of at least 30% in aggregate principal amount of the 2029 Notes then outstanding
Prior to May 15, 2024, 2029 Notes
Debt Disclosure [Line Items]
Debt instrument equity offering redemption price percentage of principal amount				40.00%
Percentage of principal amount redemption price				108.50%
12-Month Periods Ending May 10, 2022, May 10, 2023 and May 10, 2024 for 2029 Notes
Debt Disclosure [Line Items]
Debt instrument equity offering redemption price percentage of principal amount				10.00%
Percentage of principal amount redemption price				103.00%
May 15, 2024, the 2029 Notes
Debt Disclosure [Line Items]
Percentage of principal amount redemption price				100.00%
Offer to Repurchase the 2029 Notes
Debt Disclosure [Line Items]
Percentage of principal amount redemption price				101.00%
Debt instrument purchase price in cash principal amount percentage				100.00%
Maximum \| Guarantees and Collateral
Debt Disclosure [Line Items]
Debt instrument fair market value		3,000,000.0		$ 3,000,000.0
Maximum \| Prior to May 15, 2024, 2029 Notes
Debt Disclosure [Line Items]
Aggregate principal amount percentage				50.00%
Minimum \| Events of Default
Debt Disclosure [Line Items]
Debt default unpaid amount after maturity		20,000,000.0		$ 20,000,000.0
Final judgments amount by court excluding covered by insurance		$ 20,000,000.0		20,000,000.0
Minimum \| Offer to Repurchase the 2029 Notes
Debt Disclosure [Line Items]
Proceeds from sale of assets threshold amount				$ 10,000,000
2024 Notes
Debt Disclosure [Line Items]
Long-term debt, principal amount	$ 338,100,000
Maturity year of debt instrument	2024
Long-term debt, debt issuance costs	$ 18,500,000
8.500% Senior Secured Notes due 2029
Debt Disclosure [Line Items]
Long-term debt, principal amount	400,000,000.0
Gross proceeds from the sale of the senior secured notes	$ 389,900,000
Long-term debt, interest rate	8.50%	8.50%		8.50%
Maturity year of debt instrument	2029
Interest payable, Description				semiannually
Debt instrument, payment terms				Interest on the 2029 Notes accrues at a rate of 8.5% per year, payable in cash semiannually, in arrears, on May 15 and November 15 of each year, beginning on November 15, 2021
Debt instrument, issue price percentage				100.00%