XML 56 R44.htm IDEA: XBRL DOCUMENT
v3.19.1

Acquisitions Purchase Price Allocation (Tables) | 6 Months Ended
--- | ---
Mar. 31, 2019
Purchase Price Allocation [Abstract] |
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] |
(in millions) | Fair Value
Cash and cash equivalents | $ | 1.1 |
Deposits with and receivables from broker-dealers, clearing organizations, and counterparties (1) | 7.7 |
Financial instruments owned, at fair value (2) | 7.1 |
Deferred income taxes, net | 2.7 |
Property and equipment, net | 0.7 |
Other assets | 0.7 |
Total fair value of assets acquired | 20.0 |
Accounts payable and other accrued liabilities | 1.9 |
Payable to broker-dealers, clearing organizations, and counterparties | 0.1 |
Financial instruments sold, not yet purchased, at fair value (2) | 4.4 |
Total fair value of liabilities assumed | 6.4 |
Net fair value of assets acquired | 13.6 |
Purchase price | 8.2 |
Bargain purchase gain | $ | 5.4 |

X
- Definition Purchase Price Allocation [Abstract] + References No definition available. + Details
Name: | intl_PurchasePriceAllocationAbstract
Namespace Prefix: | intl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
Name: | us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration