Stock-Based Compensation Plans - Additional Information 2 (Detail) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Restricted Stock Equity Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted	1,626,670	1,400,000
Granted, weighted average grant date fair value	$ 25.09	$ 18.59
Vesting period	3 years
Stock-based compensation expense	$ 23.4	$ 15.9
Restricted Stock Equity Awards | Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years
Restricted Stock Liability Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted	21,170
Granted, weighted average grant date fair value	$ 25.41
Stock-based compensation expense	$ 3.3	$ 10.3
Restricted Stock Liability Awards | Employees
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted	13,000	603,000
Granted, weighted average grant date fair value	$ 25.61	$ 20.43
Vesting period	3 years	3 years
Restricted Stock Liability Awards | Non-Employee Directors
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted	8,000	47,000
Granted, weighted average grant date fair value	$ 25.07	$ 27.52
Vesting period	1 year	1 year