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Financial Instruments (Details) $ in Millions |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 23, 2020 USD ($) agreement | Mar. 31, 2022 USD ($) | Jun. 30, 2022 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Fair value of the entity's interest rate derivatives included in the consolidated balance sheet |  |  |  |  |  |
Fixed Interest Rate | 3.69% |  |  |  |  |
Unrealized gain on interest rate derivatives, net of tax |  |  |  | $ 0.0 | $ 5.7 | $ 13.8
January 2020 interest rate swap |  |  |  |  |  |
Fair value of the entity's interest rate derivatives included in the consolidated balance sheet |  |  |  |  |  |
Aggregate notional amount | $ 500.0 |  |  |  |  |
Term of interest rate swaps | 5 years |  |  |  |  |
Derivative Number of Instruments Entered | agreement | 3 |  |  |  |  |
Derivative, weighted average fixed interest rate | 1.44% |  |  |  |  |
Tax impact from unrealized gain (loss) on interest rate derivatives |  |  |  |  | $ 1.8 | $ 4.6
Unrealized Gain in "Interest expense" |  | $ 8.7 |  |  |  |
Realized gain in "Interest expense" |  |  | $ 16.7 |  |  |

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