Credit Facilities (Tables)

12 Months Ended

Sep. 30, 2016

Credit Facilities [Abstract]

Schedule of Debt [Table Text Block]

The following table sets forth a listing of credit facilities, the current committed amounts, as of the report date, on the facilities, and outstanding borrowings on the facilities as well as indebtedness on a promissory note an on senior notes as of September 30, 2016 and 2015:

(in millions)
Credit Facilities						Amounts Outstanding
	Borrower	Security	Renewal / Expiration Date	Total Commitment		September 30, 2016		September 30, 2015
	INTL FCStone Inc.	Certain pledged shares of certain subsidiaries	March 18, 2019	$	247.0	$	136.5	$	28.0
	INTL FCStone Financial	None	April 6, 2017	75.0		—		—
	INTL FCStone Financial	Commodity warehouse receipts	n/a	—		—		—
	FCStone Merchants	Certain commodities assets	May 1, 2018	100.0		43.5		10.0
	INTL FCStone Ltd	None	October 27, 2017	25.0		—		—
				$	447.0	180.0		38.0
Note Payable to Bank
	Monthly installments, due March 2020 and secured by certain equipment					2.8		3.6
Senior Unsecured Notes
	8.50% senior notes, redeemed October 15, 2016					45.5		45.5
Total indebtedness						$	228.3	$	87.1