XML 114 R131.htm IDEA: XBRL DOCUMENT v3.3.0.814
Employee Benefit Obligations - Components of net periodic benefit cost (Details) - USD ($)
$ in Millions
 12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2013
UNITED STATES      
Components of net periodic benefit cost:      
Service cost $ 0.8 $ 0.5  
Interest cost 3.7 3.8  
Recognized net actuarial (gain) loss (3.1) (6.7)  
UNITED STATES | Pension Plan [Member]      
Components of net periodic benefit cost:      
Service cost 0.8 0.5 $ 0.6
Interest cost 3.7 3.8 3.5
Expected return on assets (5.6) (5.2) (4.7)
Amortization of transition obligation 0.0 0.0 0.0
Recognized net actuarial (gain) loss 0.2 0.1 1.2
Net periodic cost (benefit) (0.9) (0.8) 0.6
Non-US [Member]      
Components of net periodic benefit cost:      
Service cost 2.6 3.0  
Interest cost 6.2 7.4  
Recognized net actuarial (gain) loss (10.6) (8.6)  
Non-US [Member] | Pension Plan [Member]      
Components of net periodic benefit cost:      
Service cost 2.6 3.0 2.8
Interest cost 6.2 7.4 7.1
Expected return on assets (5.2) (5.8) (5.0)
Amortization of transition obligation 0.7 (0.1) (0.8)
Recognized net actuarial (gain) loss 1.3 1.4 0.9
Net periodic cost (benefit) $ 5.6 $ 5.9 $ 5.0