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FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | $ (1,973.7) | $ (2,273.8)
Assets | 5,374.4 | 4,537.9
Recurring fair value measurement |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (1,117.1) | (817.7)
Assets | 472.0 | 501.4
Recurring fair value measurement | Embedded derivative | Notes |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Assets | 0.0 |
Recurring fair value measurement | Embedded derivative | Term Loan |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Assets | 26.7 | 5.1
Not measured at fair value in statement of financial position but for which fair value is disclosed |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (1,084.7) | (871.8)
Assets | 472.0 | 501.4
Not measured at fair value in statement of financial position but for which fair value is disclosed | Embedded derivative |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Assets | 0.0 | 0.0
Not measured at fair value in statement of financial position but for which fair value is disclosed | Embedded derivative | Notes |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Assets |  | 0.0
Not measured at fair value in statement of financial position but for which fair value is disclosed | Embedded derivative | Term Loan |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Assets | 26.7 | 5.1
TARF |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities |  | (1.4)
TARF | Recurring fair value measurement |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities |  | (1.4)
TARF | Not measured at fair value in statement of financial position but for which fair value is disclosed |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities |  | (1.4)
Extendible forward arrangement | Recurring fair value measurement |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities |  | (0.5)
Extendible forward arrangement | Not measured at fair value in statement of financial position but for which fair value is disclosed |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities |  | (0.5)
Long-term borrowings | Recurring fair value measurement | Notes |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (435.8) | (388.3)
Long-term borrowings | Recurring fair value measurement | Term Loan |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (449.2) | (411.0)
Long-term borrowings | Recurring fair value measurement | Credit facility |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (220.0) | 0.0
Long-term borrowings | Recurring fair value measurement | Equipment loans |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (2.3) | (7.3)
Long-term borrowings | Not measured at fair value in statement of financial position but for which fair value is disclosed | Notes |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (452.0) | (452.5)
Long-term borrowings | Not measured at fair value in statement of financial position but for which fair value is disclosed | Term Loan |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (400.8) | (400.9)
Long-term borrowings | Not measured at fair value in statement of financial position but for which fair value is disclosed | Credit facility |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | (220.0) |
Long-term borrowings | Not measured at fair value in statement of financial position but for which fair value is disclosed | Equipment loans |  |
Disclosure Of Fair Value Measurement Of Assets And Liabilities [Line Items] |  |
Liabilities | $ (2.1) | $ (7.3)

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