Commitments and Contingencies - Phantom (Details) (Tax Year 2008, USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Sep. 30, 2013	Aug. 01, 2014 Selling and Administrative Costs	Aug. 01, 2014 Selling and Administrative Costs	Aug. 01, 2014 Other Income	Aug. 01, 2014 Other Income
Gain Contingencies
Recovery of excessive taxes and interest	$ 0.7	$ 0.6	$ 0.6	$ 0.1	$ 0.1