| Standard label: | Deposit Contracts, Description of Liability Contracts |
| Name: | us-gaap:DepositContractsDescriptionOfLiabilityContracts |
| Documentation: | Description of the characteristics of contracts treated as deposits for which liabilities are recorded as of the balance sheet date. |
| Object type: | cm:Concept |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DepositContractsDescriptionOfLiabilityContracts |
| Label | Role | Language |
| Deposit Contracts, Description of Liability Contracts | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 340 30 50 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 340 |