IndexSecured Demand Notes
| Name | SecuredDemandNotes |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | instant |
| Substitution Group | xbrli:item |
| Balance | debit |
| Nillable | True |
| Abstract | False |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Secured Demand Notes | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Represents the carrying amount as of the balance sheet date of loans made to broker-dealers which are generally secured by marketable securities owned by the borrower broker-dealer but held by the lender, are interest-bearing, and payable upon demand. The right to demand payment may be conditioned upon the occurrence of certain events. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |