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RESTRUCTURING, IMPAIRMENT AND OTHER CHARGES - Schedule of Integration Restructuring (Details) - Clariant Color Acquisition Integration, Restructuring Plan - USD ($)
$ in Millions
 9 Months Ended 12 Months Ended
Sep. 30, 2025
Dec. 31, 2024
Restructuring Reserve [Roll Forward]    
Beginning balance $ 8.2 $ 31.1
Restructuring charges 2.0 2.0
Payments, utilization and translation (4.2) (24.9)
Ending balance 6.0 8.2
Workforce reductions    
Restructuring Reserve [Roll Forward]    
Beginning balance 7.4 30.3
Restructuring charges 1.7 0.4
Payments, utilization and translation (3.9) (23.3)
Ending balance 5.2 7.4
Plant closing and other    
Restructuring Reserve [Roll Forward]    
Beginning balance 0.8 0.8
Restructuring charges 0.3 1.6
Payments, utilization and translation (0.3) (1.6)
Ending balance $ 0.8 $ 0.8