Pension and Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Retirement Benefits [Abstract]
Defined benefit plan contributions	$ 0.0	$ 0.0
Unfunded liability plans	$ 5.8		$ 5.5