Receivables From Customers, Net and Notes Receivable, Net - Allowance for Customer Receivables (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2013
Receivables from customers and notes receivable, net [Abstract]
Allowance for Doubtful Accounts Receivable	$ 1.1		$ 1.1		$ 1.1
Provision for Doubtful Accounts	0.1	0.1	0.8	0.2
Provision Increase (Decrease)			0.4
Allowance for Doubtful Accounts Receivable, Write-offs	0.2		0.5
Allowance for Doubtful Accounts Receivable, Recoveries	$ 0.1		$ 0.1