Recent Accounting Guidance - Additional Information (Detail) - ASU 2019-12	Sep. 30, 2021
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 01, 2021
Change In Accounting Principle Accounting Standards Update Immaterial Effect	true