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EMPLOYEE BENEFIT PLANS - Summary of Projected Benefit Obligations, Accumulated Benefit Obligations, and Fair Value of Plan Assets (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Sep. 30, 2021
U.S. Plans    
Defined Benefit Plan Disclosure [Line Items]    
Projected benefit obligation $ 53.5 $ 71.4
Accumulated benefit obligation 53.5 71.4
Fair value of plan assets 50.3 69.6
Non U.S. Plan    
Defined Benefit Plan Disclosure [Line Items]    
Projected benefit obligation 51.8 106.2
Accumulated benefit obligation 49.0 100.6
Fair value of plan assets $ 39.2 $ 65.1