Restructuring and Separation Costs - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Restructuring Cost And Reserve [Line Items]
Commencement of chapter 11 cases in bankruptcy court , date of petition filed	Apr. 26, 2020
Restructuring and Separation Costs [Member]
Restructuring Cost And Reserve [Line Items]
Legal and other professional advisor fees incurred prior to petition date	$ 7.4
Severance and related costs		$ 10.3

Date petition for bankruptcy filed with the bankruptcy court, in YYYY-MM-DD format.

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Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

+ References

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