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STOCK-BASED COMPENSATION - Narrative (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) shares | Dec. 31, 2023 USD ($) shares | Dec. 31, 2022 USD ($) shares
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Expense from share-based payment transactions with employees | $ 20.0 | $ 25.0 |
Liabilities from share-based payment transactions | 54.0 | 50.0 |
Restricted share units [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Expense from share-based payment transactions with employees | $ 35.0 | $ 30.0 |
Weighted average remaining contractual life | 9 months 25 days | 9 months 25 days |
Number of common shares per unit of share-based payment arrangement | shares | 1 |  |
Number of units outstanding (shares) | shares | 3,686,000 | 2,855,000 | 2,337,000
Liabilities from share-based payment transactions | $ 39.3 | $ 34.0 | $ 26.3
Aggregate share-based liability, fair value, other equity instruments, exercised or vested | (31.3) | (23.2) |
Aggregate share-based liability, fair value, other equity instruments, granted | 37.6 | 32.9 |
Aggregate share-based liability fair value, other equity instruments, credit for dividends | 1.7 | 1.4 |
Increase (decrease) in aggregate share-based liability, fair value, other equity instruments | $ (2.7) | $ (3.4) |
PGSUs |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number of common shares per unit of share-based payment arrangement | shares | 1 |  |
Number of units outstanding (shares) | shares | 3,453,000 | 3,002,000 |
Liabilities from share-based payment transactions | $ 38.0 | $ 36.0 |
Deferred Share Units [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number of common shares per unit of share-based payment arrangement | shares | 1 |  |
Number of units outstanding (shares) | shares | 772,000 | 1,011,000 | 837,000
Liabilities from share-based payment transactions | $ 12.0 | $ 18.3 | $ 14.4
Aggregate share-based liability, fair value, other equity instruments, exercised or vested | (6.7) | 0.0 |
Aggregate share-based liability, fair value, other equity instruments, granted | 2.5 | 2.9 |
Aggregate share-based liability fair value, other equity instruments, credit for dividends | 0.0 | 0.0 |
Increase (decrease) in aggregate share-based liability, fair value, other equity instruments | $ (2.1) | $ 1.0 |

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