Quarterly report pursuant to Section 13 or 15(d)

Amortizable Intangible Assets - Additional Information (Detail)

v3.21.2
Amortizable Intangible Assets - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Property, Plant and Equipment [Line Items]        
Amortization of intangible assets $ 0.4 $ 0.8 $ 1.5 $ 2.6