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v3.21.2

Long-Term Debt - Summary of Long-Term Debt (Parenthetical) (Detail) | Sep. 30, 2021 | Dec. 31, 2020
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2026 Revolving Credit Facility |  |
Debt Instrument [Line Items] |  |
Weighted average interest rate | 2.80% | 3.80%

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- Definition 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. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Weighted average interest rate of debt outstanding. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |