Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2026

Share-Based Payment Arrangement [Abstract]

Schedule of Share-Based Compensation

The following table presents share-based compensation expense:

	For the Three Months Ended March 31,
	2025	2026
Share-based compensation expense	$10.8	$6.9
Tax benefit	1.1	1.1

Schedule of Company Restricted Stock Units Transactions

The following table summarizes transactions in the Company’s restricted stock units:

	Restricted Stock Units	Weighted Average Grant Date Value Per Unit
Unvested units, as of December 31, 2025	1.0	$161.80
Units granted	0.1	299.17
Units vested	(0.2)	153.98
Units forfeited	(0.1)	170.21
Performance condition changes	—	—
Unvested units, as of March 31, 2026	0.8	$180.68

Schedule of Company Stock Option Transactions

The following table summarizes transactions in the Company’s stock options:

	Stock Options	Weighted Average Exercise Price Per Option	Weighted Average Remaining Contractual Life (Years)
Unexercised options outstanding, as of December 31, 2025	0.3	$92.73
Options granted	—	—
Options exercised	(0.1)	75.54
Options forfeited	—	—
Options expired	—	—
Performance condition changes	—	—
Unexercised options outstanding, as of March 31, 2026	0.2	$98.57	1.3
Exercisable at March 31, 2026	0.1	$85.64	0.7