Stock-Based Compensation Plans - Additional Information 1 (Detail) - Restricted Stock Equity Awards - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years
Stock-based compensation expense	$ 26.5	$ 23.4
Officer
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years
Non Employee Directors
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	1 year

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details