Employee Benefit Plans - Summary of Net Periodic Benefit Costs (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Net Periodic Benefit Cost [Abstract]
Service cost	$ 1.1	$ 1.0
Interest cost on projected benefit obligations	0.2	0.4
Expected return on plan assets	(0.1)	(0.1)
Amortization of actuarial net loss	0.7	0.5
Net periodic benefit costs	$ 1.9	$ 1.8