| Standard label: | Securities Loaned, Not Subject to Master Netting Arrangement |
| Name: | us-gaap:SecuritiesLoanedNotSubjectToMasterNettingArrangement |
| Documentation: | Amount of securities loaned to entities in exchange for collateral, not subject to a master netting arrangement. |
| 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:SecuritiesLoanedNotSubjectToMasterNettingArrangement |
| Label | Role | Language |
| Securities Loaned, Not Subject to Master Netting Arrangement | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 210 20 50 3 (d) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |
| FASB Accounting Standards Codification 210 20 55 22 | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |