Credit Facilities - Number of Credit Facilities (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			12 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2013 Main line of credit facilities [Member]	Sep. 30, 2012 Main line of credit facilities [Member]	Sep. 30, 2013 HCO Syndicated line of credit facility [Member] Rate	Sep. 30, 2013 INTL COM line of credit facility [Member]	Sep. 30, 2013 FCS Margin line of credit facility [Member] Rate	Sep. 30, 2013 Eurodollar Rate [Member] HCO Syndicated line of credit facility [Member]	Sep. 30, 2013 Base Rate [Member] HCO Syndicated line of credit facility [Member]	Sep. 30, 2013 Base Rate [Member] FCS Margin line of credit facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 290.0	$ 150.0	$ 140.0	$ 0	$ 75.0
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage				0.625%		0.50%
Debt Instrument, Basis Spread on Variable Rate							3.00%	2.00%	2.00%
Line of Credit Facility, Interest Rate at Period End				3.72%		5.25%
Debt Issuance Cost	$ 1.7			$ 1.5
Number of credit facilities	3