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Debt, Interest Income, Expense, and Other Finance Costs - Interest Income (Expense), and Other Financing Costs, net (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Debt Disclosure [Abstract] |  |  |  |
Interest income | $ 2.4 | $ 1.3 | $ 4.0 | $ 3.8
Interest expense and other financing costs | (34.9) | (27.8) | (70.7) | (44.6)
Interest expense and other financing costs, net | $ (32.5) | $ (26.5) | $ (66.8) | $ (40.9)

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