Subsequent Event

12 Months Ended

Sep. 30, 2011

Subsequent Events [Abstract]

Subsequent Events [Text Block]

Subsequent Event

On November 25, 2011, INTL FCStone (Europe), the Company's wholly owned subsidiary in the United Kingdom, arranged with the trustee of MF Global's UK operations to acquire the Metals Division of MF Global UK Limited (in special administration). As part of the arrangement, the Company has received assignment of customer accounts and customer account documentation. Additionally, the Company has hired more than 50 professional staff from MF Global's metals trading business based in London. The Company anticipates that a substantial number of the customers of this metals trading operation will elect to become active trading customers of the Company. The purchase price of this transaction is not material to the consolidated financial statements of the Company. The Company expects to allocate equity capital to integrate these brokers and their customers into the Company's operations, through a combination of increased regulatory capital to support the accounts of these customers and increased compensation and related personnel costs for the brokers. The amount of the required capital will primarily depend upon the activity in and balances of the new accounts. As part of this transaction, INTL FCStone (Europe) has received approval from the LME to upgrade its LME Category Two membership to a LME Category One ring dealing membership.