Other Expenses - Other Expenses Breakout (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Other Expenses [Abstract]
Accretion Expense	$ 0.1	$ 0.5	$ 0.3	$ 1.2
General Insurance Expense	0.4	0.4	0.8	0.9
Advertising Expense	1.3	0.5	1.8	1.1
Technology Services Costs	0.8	0.9	1.5	1.5
Supplies and Postage Expense	0.3	0.3	0.5	0.7
Clearance Fees	0.2	0.5	0.6	0.9
Taxes, Miscellaneous	0.9	1.2	2.0	2.2
Other Expenses	1.3	1.6	2.5	4.1
Other Cost and Expense, Operating	$ 5.3	$ 5.9	$ 10.0	$ 12.6