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Credit Facilities - Number of Credit Facilities (Details) $ in Millions | 6 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2020 USD ($) Rate | Jun. 30, 2020 USD ($) | Sep. 30, 2019 USD ($)
Term Loan Initial Balance | $ 196.5 |  |
Term Loan Periodic Principal Payment, Percent | Rate | 1.25% |  |
Number of credit facilities | 4 |  |
Maximum available under credit facility | $ 393.0 |  |
Main line of credit facilities [Member] |  |  |
Borrowing Capacity Under Credit Facilities | 739.0 |  |
HCO Syndicated line of credit facility [Member] |  |  |
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net |  | $ 0.6 |
Line of Credit Facility, Maximum Borrowing Capacity | 196.5 |  |
Borrowing Capacity Under Credit Facilities | 379.0 |  |
FCS Margin line of credit facility [Member] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 75.0 |  |
Line of Credit, Current |  | 0.0 | $ 0.0
FMS Sub-note commodity line of credit facility [Member] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 260.0 |  |
INTL FCStone Ltd [Member] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 100.0 |  |
Line of Credit, Current |  | 24.4 | 0.0
Rabobank Uncommited Line of Credit [Domain] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 20.0 |  |
Line of Credit, Current |  | 0.0 | 3.4
INTL FCStone Ltd [Member] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 25.0 |  |
Line of Credit, Current |  | $ 0.0 | $ 0.0

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- Definition Borrowing Capacity Under Credit Facilities + References No definition available. + Details
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- Definition Maximum available under credit facility + References No definition available. + Details
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- Definition Number of credit facilities available to the company. + References No definition available. + Details
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- Definition Term Loan Initial Balance + References No definition available. + Details
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- Definition Term Loan Periodic Principal Payment, Percent + References No definition available. + Details
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- Definition Amount of unamortized debt discount (premium) and debt issuance costs. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -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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- Definition The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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