Stock-Based Compensation (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation			$ 15.2	$ 12.5
Total tax benefits (expense) associated with stock-based compensation	$ 0.6	$ 0.6	2.1	(0.2)
To be settled with stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	3.2	3.1	14.1	10.1
Employee contributions for above stock plans	0.7	1.2	1.1	2.4
Total stock-based compensation	3.9	4.3	15.2	12.5
Total tax benefits (expense) associated with stock-based compensation	0.8	0.8	3.5	2.5
To be settled with stock \| Tax expense on stock-based compensation payments
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total tax benefits (expense) associated with stock-based compensation	(0.2)	(0.2)	(1.4)	(2.7)
To be settled with stock \| Restricted Stock Unit awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	0.6	0.4	9.5	7.4
To be settled with stock \| All other stock plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	2.6	2.7	4.6	2.7
To be settled in cash
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	1.6	0.9	2.2	1.2
To be settled in cash \| Restricted Stock Unit awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	0.0	0.0	0.0	0.0
To be settled in cash \| All other stock plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 1.6	$ 0.9	$ 2.2	$ 1.2

Employee contributions to stock compensation plans.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of noncash expense for share-based payment arrangement.

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