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Stock-Based Compensation - Narrative (Detail) - USD ($) shares in Thousands, $ in Millions			12 Months Ended
	Oct. 23, 2024	Sep. 30, 2021	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefits recorded on stock based compensation			$ 60.7	$ 22.1	$ 25.5
Aggregate intrinsic value of options exercisable			$ 292.9
Weighted average remaining contractual term of options exercisable (in years)			3 years 1 month 6 days
Weighted-average remaining contractual life for options outstanding (in years)			4 years 7 months 6 days
Shares, granted (in shares)			169	411	649
Share-based payment arrangement, plan modification, incremental cost	$ 10.3
Performance Option Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, granted (in shares)		850
Restricted Stock And Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of restricted stock and restricted stock units vested			$ 112.3	$ 66.6	$ 34.4
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized to issue grants (in shares)			20,650

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