Quarterly report pursuant to Section 13 or 15(d)

Retirement Benefits - Narrative (Details)

v3.2.0.727
Retirement Benefits - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Compensation and Retirement Disclosure [Abstract]        
Postemployment Benefits, Period Expense $ (0.1) $ 0.1 $ 0.1 $ 0.3
Defined Contribution Plan, Cost Recognized $ 2.4 $ 2.3 $ 6.9 $ 6.5