Income Taxes (Narrative) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Effective income tax rates	23.20%	23.40%	22.30%	23.30%
Deferred tax asset valuation allowance	$ 13.7		$ 13.7		$ 13.7
Liabilities for income taxes associated with uncertain tax positions	15.2		15.2		12.4
Offsetting tax benefits related to uncertain tax positions	$ 1.0		$ 1.0		$ 0.8
Unrecognized tax positions increase decrease, months			It is reasonably possible that the unrecognized benefit with respect to certain of the Company’s unrecognized tax positions may increase or decrease within the next 12 months. Any such change may be the result of either ongoing audits or the expiration of federal and state statutes of limitations for the assessment of taxes.
Minimum tax rate in jurisdictions which it operates percentage subject to international anti-base erosion rules			15.00%