Share-Based Compensation - Total Share-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]
Share-based compensation expense	$ 6.7	$ 11.6	$ 23.1	$ 20.1
Restricted stock units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation expense	4.6	5.4	11.6	9.3
Performance share units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation expense	0.9	4.0	6.8	6.8
Stock options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation expense	$ 1.2	$ 2.2	$ 4.7	$ 4.0

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