Basis of Presentation of Unaudited Interim Condensed Consolidated Financial Statements and Significant Accounting Policies - (Details) (Adoption of New Accounting Guidance, Restatement Adjustment, USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2014
Adoption of New Accounting Guidance | Restatement Adjustment
Reclassification of unrecognized tax benefits	$ (0.4)
Increase (Decrease) in noncurrent deferred income taxes receivable	$ (0.4)