| Standard label: | Derivative Asset, Fair Value, Gross Asset |
| Name: | us-gaap:DerivativeFairValueOfDerivativeAsset |
| Documentation: | Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DerivativeFairValueOfDerivativeAsset |
| Label | Role | Language |
| Derivative Asset, Fair Value, Gross Asset | http://www.xbrl.org/2003/role/label | en-US |
| Derivative Asset, Fair Value, Gross Asset, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 210 20 50 3 (a) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |
| FASB Accounting Standards Codification 210 20 55 7 | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |
| FASB Accounting Standards Codification 815 10 50 4B (a),(c) | http://fasb.org/us-gaap/role/ref/legacyRef | 815 |
| FASB Accounting Standards Codification 860 20 50 4D (c)(2) | http://fasb.org/us-gaap/role/ref/legacyRef | 860 |