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Credit Facilities - Number of Credit Facilities (Details) $ in Millions | Mar. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
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Number of credit facilities | 4 |
HCO Syndicated line of credit facility [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 350.0 | $ 262.0
FCS Margin line of credit facility [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | 75.0 |
FMS Sub-note commodity line of credit facility [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | 232.5 |
INTL FCStone Ltd [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | 100.0 |
INTL FCStone Ltd [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 50.0 | $ 25.0

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- Definition Number of credit facilities available to the company. + References No definition available. + Details
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Namespace Prefix: | intl_
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Balance Type: | na
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Balance Type: | credit
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- Details
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- Details
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- Details
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- Details
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- Details
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Balance Type: |
Period Type: |