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EMPLOYEE SEPARATION AND RESTRUCTURING COSTS - Schedule of Integration Restructuring (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Restructuring Reserve [Roll Forward] |  |  |
Restructuring costs | $ 26.4 | $ 38.1 | $ 14.7
Clariant Color Acquisition Integration, Restructuring Plan |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Beginning balance | 36.7 | 8.1 | 6.0
Restructuring costs | 8.1 | 32.9 | 12.0
Payments, utilization and translation | (13.7) | (4.3) | (9.9)
Ending balance | 31.1 | 36.7 | 8.1
Workforce reductions |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring costs | 18.3 |  |
Workforce reductions | Clariant Color Acquisition Integration, Restructuring Plan |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Beginning balance | 34.3 | 7.5 | 5.6
Restructuring costs | 6.9 | 30.8 | 7.7
Payments, utilization and translation | (10.9) | (4.0) | (5.8)
Ending balance | 30.3 | 34.3 | 7.5
Plant closing and other | Clariant Color Acquisition Integration, Restructuring Plan |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Beginning balance | 2.4 | 0.6 | 0.4
Restructuring costs | 1.2 | 2.1 | 4.3
Payments, utilization and translation | (2.8) | (0.3) | (4.1)
Ending balance | $ 0.8 | $ 2.4 | $ 0.6

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