| Standard label: | Secured Debt, Repurchase Agreements |
| Name: | us-gaap:SecuredDebtRepurchaseAgreements |
| Documentation: | Carrying value, as of the balance sheet date, of securities sold under agreements to repurchase where the transferor maintains effective control over the assets, accounting for them as secured debt. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:SecuredDebtRepurchaseAgreements |
| Label | Role | Language |
| Secured Debt, Repurchase Agreements | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 235 10 S99 1 (SX 210.4-08.(m)(1)(i)) | http://fasb.org/us-gaap/role/ref/legacyRef | 235 |
| FASB Accounting Standards Codification 860 10 55 51 | http://fasb.org/us-gaap/role/ref/legacyRef | 860 |