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Fair Value Measurements (Details) - USD ($) $ in Millions | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Derivative [Line Items] |  |
Long-term Debt, Gross | $ 1,000.0 |
Fixed rate debt |  |
Derivative [Line Items] |  |
Long-term Debt, Gross | 780.4 | $ 783.3
Value of debt | 880.3 | 817.7
Variable rate debt |  |
Derivative [Line Items] |  |
Value of debt | $ 242.0 | $ 89.0

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