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EMPLOYEE SEPARATION AND RESTRUCTURING COSTS - Schedule of Integration Restructuring (Details) - Clariant Color Acquisition Integration, Restructuring Plan - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2024 | Dec. 31, 2023
Restructuring Reserve [Roll Forward] |  |
Beginning balance | $ 31.1 | $ 36.7
Restructuring charges | (1.7) | 8.1
Payments, utilization and translation | (5.9) | (13.7)
Ending balance | 23.5 | 31.1
Workforce reductions |  |
Restructuring Reserve [Roll Forward] |  |
Beginning balance | 30.3 | 34.3
Restructuring charges | (2.6) | 6.9
Payments, utilization and translation | (5.0) | (10.9)
Ending balance | 22.7 | 30.3
Plant closing and other |  |
Restructuring Reserve [Roll Forward] |  |
Beginning balance | 0.8 | 2.4
Restructuring charges | 0.9 | 1.2
Payments, utilization and translation | (0.9) | (2.8)
Ending balance | $ 0.8 | $ 0.8

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