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Employee Benefit Plans (Components Of Net Periodic Benefit Cost) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2019
Mar. 31, 2018
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Service cost $ 0.1 $ 0.1 $ 0.2 $ 0.2
Interest cost 0.7 0.7 1.4 1.4
Expected return on assets (1.1) (1.1) (2.2) (2.3)
Recognized net actuarial loss 0.1 0.3 0.1 0.5
Net periodic benefit cost (0.2)   $ (0.5) $ (0.2)
Weighted average assumptions        
Discount rate     4.10% 4.25%
Expected return on plan assets     6.50% 7.25%
Non U.S. Plans [Member]        
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]        
Service cost 0.5 0.5 $ 1.0 $ 1.0
Interest cost 0.9 0.9 1.8 1.8
Expected return on assets (1.1) (1.1) (2.2) (2.2)
Recognized net actuarial loss 0.5 0.4 1.0 0.8
Net periodic benefit cost $ 0.8 $ 0.7 $ 1.6 $ 1.4
Non U.S. Plans [Member] | Minimum [Member]        
Weighted average assumptions        
Discount rate     1.00% 1.75%
Expected return on plan assets     1.00% 1.75%
Rate of compensation increase     2.05% 2.25%
Non U.S. Plans [Member] | Maximum [Member]        
Weighted average assumptions        
Discount rate     8.15% 7.00%
Expected return on plan assets     4.01% 4.53%
Rate of compensation increase     4.85% 5.50%