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Supplementary Financial Information- Schedule of Other (Expense) Income, Net (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Offsetting [Abstract] |  |  |  |
Gain on step-up of equity method investment | $ 0.0 | $ 0.0 | $ 4.4 | $ 0.0
Net loss on extinguishment of debt | (0.3) | 0.0 | (0.3) | (2.2)
Interest income | 0.1 | 0.5 | 0.5 | 1.0
Foreign currency translation (losses) gains | (0.5) | (0.3) | (0.9) | 0.2
Unrealized fair value gain on securities | 0.3 | 0.0 | 0.5 | 0.0
Other | 0.1 | 0.0 | (0.5) | 0.0
Total other (expense) income, net | $ (0.3) | $ 0.2 | $ 3.7 | $ (1.0)

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