Employee Benefits - Schedule of Share-Based Compensation Expense Under the 2014 Omnibus Incentive Plan (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]
Share-based compensation expense	$ 6.2	$ 5.3	$ 11.9	$ 11.2
2014 Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	6.2	5.3	11.9	11.2
2014 Omnibus Incentive Plan \| Common Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	3.4	2.6	6.3	5.6
2014 Omnibus Incentive Plan \| Common Stock Awards \| Non-Employee Common Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	0.2	0.2	0.4	0.4
2014 Omnibus Incentive Plan \| Performance-Based Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	2.1	1.9	4.1	3.8
2014 Omnibus Incentive Plan \| Liability Performance-Based Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	0.0	0.2	0.1	0.5
2014 Omnibus Incentive Plan \| Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 0.5	$ 0.4	$ 1.0	$ 0.9

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