| Standard label: | Trading Liabilities, Fair Value Disclosure |
| Name: | us-gaap:TradingLiabilitiesFairValueDisclosure |
| Documentation: | Fair value portion of liabilities pertaining to principal and customer trading transactions, or which may be incurred with the objective of generating a profit from short-term fluctuations in price as part of an entity's market-making, hedging and proprietary trading. Examples include, but are not limited to, short positions in securities, derivatives and commodities. |
| 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:TradingLiabilitiesFairValueDisclosure |
| Label | Role | Language |
| Trading Liabilities, Fair Value Disclosure | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| Part Of Roll Up: |
| us-gaap:FinancialLiabilitiesFairValueDisclosure |