XML 135 R105.htm IDEA: XBRL DOCUMENT v3.21.2
EMPLOYEE BENEFIT PLANS - Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 12 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
U.S. Plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost $ 0.5 $ 0.7 $ 0.4
Interest cost 1.8 2.2 2.8
Expected return on assets (3.7) (4.1) (4.4)
Settlements and curtailments 0.0 0.9 0.0
Recognized net actuarial loss 1.4 0.9 0.2
Net periodic benefit cost $ 0.0 $ 0.6 $ (1.0)
Weighted average assumptions      
Discount rate 2.46% 3.04% 4.10%
Expected return on plan assets 6.00% 6.50% 6.50%
Non U.S. Plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost $ 1.5 $ 1.7 $ 1.4
Interest cost 2.1 1.9 2.9
Expected return on assets (4.0) (3.8) (3.8)
Settlements and curtailments 0.0 0.0 0.0
Recognized net actuarial loss 3.4 3.7 1.9
Net periodic benefit cost $ 3.0 $ 3.5 $ 2.4
Weighted average assumptions      
Rate of compensation increase 2.25% 2.25%  
Non U.S. Plans | Minimum      
Weighted average assumptions      
Discount rate 0.70% 0.75% 1.85%
Expected return on plan assets 0.70% 3.07% 3.40%
Rate of compensation increase     2.25%
Non U.S. Plans | Maximum      
Weighted average assumptions      
Discount rate 1.75% 1.80% 4.07%
Expected return on plan assets 3.40% 3.40% 4.01%
Rate of compensation increase     2.50%