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FAIR VALUE MEASUREMENTS - Items not at Fair Value (Details) - Level 2 - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value of Debt Instruments |  |
Total fair value of long term debt | $ 1,935.6 | $ 1,930.9
2029 Senior Notes |  |
Fair Value of Debt Instruments |  |
Total fair value of long term debt | 173.8 | 180.4
2025 Senior Notes |  |
Fair Value of Debt Instruments |  |
Total fair value of long term debt | 95.0 | 98.5
2028 Term Loan B |  |
Fair Value of Debt Instruments |  |
Total fair value of long term debt | 567.6 | 564.9
2028 Refinance Term Loans |  |
Fair Value of Debt Instruments |  |
Total fair value of long term debt | $ 1,099.2 | $ 1,087.1

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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- Details
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