Quarterly report pursuant to Section 13 or 15(d)

Retirement Benefits (Details)

v3.8.0.1
Retirement Benefits (Details) - USD ($)
$ in Millions
3 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Foreign Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Service costs $ 0.6 $ 0.4
Interest costs 0.3 0.2
Expected return on plan assets (0.2) (0.1)
Amortization of unrecognized prior service costs, net 0.0 0.0
Amortization of net loss 0.2 0.0
Net pension costs 0.9 0.5
Domestic Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Service costs 0.7 1.0
Interest costs 2.2 2.2
Expected return on plan assets (3.5) (3.3)
Amortization of unrecognized prior service costs, net 0.0 0.1
Amortization of net loss 0.8 1.1
Net pension costs $ 0.2 $ 1.1