Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

v3.8.0.1
Commitments and Contingencies (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract]      
Rental expense charged to income $ 23.6 $ 27.8 $ 30.0
Aggregate future minimum lease payments for operating leases, excluding renewable periods      
2017 18.5    
2018 15.8    
2019 12.1    
2020 10.4    
2021 8.3    
Thereafter 35.3    
Future minimum operating lease payments, excluding renewable periods 100.4    
General Claims and Lawsuit | Maximum      
Commitments and Contingencies      
Deductibles and self-insured retentions per occurrence or per claim $ 0.5