| Name | SecurityOwnedAndSoldNotYetPurchasedAtFairValueAxis |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrldt:dimensionItem |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Security Owned and Sold, Not yet Purchased, at Fair Value [Axis] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Group of financial instruments held by a broker-dealer for their own account (proprietary securities) for trading or investment purposes that are carried at fair value including securities sold, not yet purchased. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| SourceName | Financial Instruments-Recognition and Measurement | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2018 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2017-08 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedReferences | true | http://fasb.org/srt/role/changeNote/changeNote |
| Source_ASU_Number | 2016-01 | http://fasb.org/srt/role/changeNote/changeNote |
| Publisher | FASB | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
| Topic | 940 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 320 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | 45 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 2 | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=35711157&loc=d3e42546-110969 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityNameDomain | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealers | |
us-gaap:SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityNameDomain | dimension-default | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable | |
us-gaap:SecurityOwnedAndSoldNotYetPurchasedFairValueSecurityNameDomain | dimension-domain | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:SecurityOwnedAndSoldNotYetPurchasedAtFairValueTable | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealers | |
us-gaap:SecurityOwnedAndSoldNotYetPurchasedAtFairValueTable | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSecurityOwnedAndSoldNotYetPurchasedAtFairValueTable |