Income Taxes - Narrative (Detail) - USD ($) $ in Millions	3 Months Ended
Income Taxes - Narrative (Detail) - USD ($) $ in Millions	Mar. 31, 2024	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Income Tax Expense (Benefit)	$ 7.0	$ 8.4
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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