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Derivatives and Fair Value Measurements - Fair Value of Long-term Debt (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Fair Value of Debt [Line Items] |  |
Debt and Lease Obligation, Net | $ 334.2 | $ 333.8
Carrying Amount |  |
Fair Value of Debt [Line Items] |  |
Total debt at par value | 342.3 | 343.6
Less: Unamortized debt issuance costs | (8.1) | (9.8)
Debt and Lease Obligation, Net | 334.2 | 333.8
Estimated Fair Value |  |
Fair Value of Debt [Line Items] |  |
Estimated fair value | $ 483.9 | $ 560.0

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