Stock Options and Restricted Stock - Summary of Activity for Stock Option Programs (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2025	Dec. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Aggregate intrinsic value for option exercised	$ 0.1	$ 0.1	$ 0.1
Aggregate intrinsic value of option outstanding	$ 2.5	$ 2.5
Remaining contractual life of option outstanding		4 years 8 months 12 days