| Name | ClearingServiceMember |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | nonnum:domainItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Clearing Service [Member] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Matching of all buy and sell orders to reconcile transactions, ensure delivery of order and record transfer of funds. Includes, but is not limited to, delivery and creation of futures position from option exercise or assignment, Exchange for Physicals (EFP), block trades and transfer trades. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| SourceName | Revenue | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2018 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2017-11 | http://fasb.org/srt/role/changeNote/changeNote |
| NewElement | true | http://fasb.org/srt/role/changeNote/changeNote |
| Source_ASU_Number | 2014-09 | http://fasb.org/srt/role/changeNote/changeNote |
| Publisher | FASB | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2009/role/commonPracticeRef |
| Topic | 606 | http://www.xbrl.org/2009/role/commonPracticeRef |
| SubTopic | 10 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Section | 55 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Paragraph | 91 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Subparagraph | (a) | http://www.xbrl.org/2009/role/commonPracticeRef |
| URI | http://asc.fasb.org/extlink&oid=121551570&loc=SL49130690-203046-203046 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:ClearingFeesRevenue | dep-dimensionallyQualifiedConcept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:FinancialServiceMember | domain-member | http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists | |
us-gaap:FinancialServiceMember | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfIncome | |
us-gaap:FinancialServiceMember | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfIncomeStatementTable |