Quarterly report pursuant to Section 13 or 15(d)

Operating Leases - Additional Information (Detail)

v3.21.2
Operating Leases - Additional Information (Detail) - USD ($)
$ in Millions
Sep. 30, 2021
Dec. 31, 2020
Leases [Abstract]    
Operating lease right-of-use assets $ 143.3 $ 126.9
Operating lease right-of-use assets, accumulated amortization $ 58.0 $ 42.9