Share-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2024

Share-Based Payment Arrangement [Abstract]

Costs Associated with Share-Based Compensation Plans

The following table summarizes the costs associated with the Company’s share-based compensation plans:

	Year ended December 31,
	2024		2023		2022
	(in millions)
Expense:
RSUs	$	40.2	$	38.4	$	57.9
PRSUs		5.6		4.5		2.8
Employee stock purchase plan		6.2		6.2		6.6
	$	52.0	$	49.1	$	67.3

Summary of RSU and PSRU Activity

The following table summarizes RSU and PRSU activity for the year ended December 31, 2024:

(in millions, except weighted-average grant-date fair value)	Shares			Weighted-average grant-date fair value
Unvested at December 31, 2023		1.0		$	64.19
Granted during 2024		0.9			58.91
Vested during 2024		(0.7	)		60.44
Unvested at December 31, 2024		1.2		$	62.37