| Name | SubordinatedLiabilitiesPeriodIncreaseDecrease |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Subordinated Liabilities, Period Increase (Decrease) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Subordinated Liabilities, Period Increase (Decrease), Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Amount of increase (decrease) in subordinated debt. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| PublishDate | 2016-01 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| Positive_XBRL_Value | Enter a positive XBRL value for net increases. | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| Negative_XBRL_Value | Enter a negative XBRL value for net decreases. | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:SubordinatedLiabilitiesAdditions | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealers | |
us-gaap:SubordinatedLiabilitiesExtinguished | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealers |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:IncreaseDecreaseToSubordinatedLiabilitiesRollForward | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealers | |
us-gaap:SubordinatedBorrowingLineItems | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealers | |
us-gaap:SubordinatedBorrowingLineItems | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialServicesBrokersAndDealersSubordinatedBorrowingTable |