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Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Retirement Benefits [Abstract]
Company incurred matching contribution expenses	$ 117.5	$ 111.7	$ 99.2
Defined benefit plan, assets	17.3	16.4
Defined benefit plan, liabilities	$ 2.0	$ 2.5

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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