Share-Based Compensation - Share-Based Payment Arrangement, Cost by Plan (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	$ 2.3	$ 1.4	$ 6.5	$ 6.0
Less: tax benefit	(0.7)	(0.4)	(1.8)	(1.6)
Share-based compensation amounts included in net income	1.6	1.0	4.7	4.4
Awards to key employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	2.0	1.1	5.8	5.3
Awards to non-employee directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense	$ 0.3	$ 0.3	$ 0.7	$ 0.7

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details