Leases - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Lease And Rental Expense [Line Items]
Right-of-use asset	$ 45.3	$ 47.1
Lease liability	47.5	$ 48.2
ASU No. 2016-02 [Member]
Lease And Rental Expense [Line Items]
Estimated ROU assets and lease liabilities	$ 1.6