Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2025

Shares awarded to non-employee directors [Line Items]

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan

The table below presents the amounts included in net income related to share-based compensation expense for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2025		2024		2025		2024
(in millions)
Awards to key employees	$	2.1	$	2.2	$	4.2	$	4.1
Awards to non-employee directors	0.2		0.2		0.4		0.4
Total compensation expense	2.3		2.4		4.6		4.5
Less: tax benefit	(0.6)		(0.6)		(1.2)		(1.1)
Share-based compensation amounts included in net income	$	1.7	$	1.8	$	3.4	$	3.4

Award to key employees [Member]

Shares awarded to non-employee directors [Line Items]

Schedule of Share-based Compensation, Activity

The table below presents the summary of the stock activity for awards to key employees for the six months ended June 30, 2025: 

(in thousands, except per share data)	Number of Shares	Weighted Average Fair Value/Share
Outstanding—December 31, 2024	253	$	117.96
Granted	99	$	125.56
Vested	(37)	$	129.76
Expired	(26)	$	113.34
Outstanding—June 30, 2025	289	$	115.69