XML 93 R80.htm IDEA: XBRL DOCUMENT v3.10.0.1
Commitments and Contingencies - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]      
Lease expense $ 55.9 $ 56.3 $ 69.3
Sublease income 0.2 $ 0.4 $ 1.6
Future minimum rentals to be received under non-cancelable subleases 0.2    
Committed capital contributions 299.0    
Plaintiff Cryer 401K Plan [Member]      
Loss Contingencies [Line Items]      
The plaintiff alleges that Plan losses exceed 79.0    
Plaintiff Fernandez 401K Plan [Member]      
Loss Contingencies [Line Items]      
The plaintiff alleges that Plan losses exceed $ 60.0