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Share-Based Compensation - Intrinsic Value (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Share-Based Compensation      
Intrinsic value of options outstanding $ 9.9   $ 8.6
Intrinsic value of options unvested 0.1   $ 0.0
Intrinsic value of options exercised $ 0.0 $ 0.1