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Employee Benefit Plans - Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 3 Months Ended
Jan. 03, 2021
Dec. 29, 2019
U.S. Plans    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Service cost $ 0.1 $ 0.2
Interest cost 0.5 0.6
Expected return on assets (0.9) (1.1)
Settlement and curtailment 0.0 0.9
Recognized net actuarial loss 0.3 0.3
Net periodic benefit cost $ 0.0 $ 0.9
Weighted average assumptions    
Discount rate 2.46% 3.07%
Expected return on plan assets 6.00% 6.50%
Non U.S. Plans    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Service cost $ 0.5 $ 0.6
Interest cost 0.6 0.6
Expected return on assets (1.0) (0.9)
Settlement and curtailment 0.0 0.0
Recognized net actuarial loss 0.8 0.7
Net periodic benefit cost $ 0.9 $ 1.0
Non U.S. Plans | Minimum    
Weighted average assumptions    
Discount rate 0.50% 0.75%
Expected return on plan assets 0.50% 0.75%
Rate of compensation increase 2.25% 2.25%
Non U.S. Plans | Maximum    
Weighted average assumptions    
Discount rate 6.90% 7.70%
Expected return on plan assets 3.40% 3.40%
Rate of compensation increase 6.00% 6.00%