Discontinued Operations - Additional Disclosures (Details) $ in Millions	3 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Jun. 30, 2013 Store
Discontinued Operations and Disposal Groups [Abstract]
Number of store closings | Store			107
Accrued severance and lease termination costs related to discontinued operations	$ 7.8	$ 3.8
Cash payments in regards to recorded lease termination costs, severance costs, and others related to discontinued operations	0.7	1.7
Adjustment due to foreign currency effects and other individually immaterial adjustments	0.4
Total revenues	$ 1.3	$ 8.9