XML 69 R52.htm IDEA: XBRL DOCUMENT
v3.23.3

Regulatory Requirements and Subsidiary Dividend Restrictions (Tables) | 12 Months Ended
--- | ---
Sep. 30, 2023
Capital and Other Regulatory Requirements [Abstract] |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations | The following table details the Company’s subsidiaries with a minimum regulatory net capital requirement in excess of $10.0 million as well as the actual regulatory capital of the subsidiary as of September 30, 2023 (in millions):
Subsidiary | Regulatory Authority |  |  |  | Actual |  | Minimum Requirement
StoneX Financial Inc. | SEC and CFTC |  |  |  | $ | 353.0 |  |  | $ | 220.5 |
StoneX Financial Ltd. | FCA |  |  |  | $ | 458.5 |  |  | $ | 358.0 |
Gain Capital Group, LLC | CFTC and NFA |  |  |  | $ | 50.1 |  |  | $ | 29.3 |
StoneX Financial Pte. Ltd. | MAS |  |  |  | $ | 76.5 |  |  | $ | 24.4 |
StoneX Markets LLC | CFTC and NFA |  |  |  | $ | 221.3 |  |  | $ | 122.1 |

X
- Definition Capital and Other Regulatory Requirements [Abstract] + References No definition available. + Details
Name: | intl_CapitalAndOtherRegulatoryRequirementsAbstract
Namespace Prefix: | intl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1B + Details
Name: | us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration