| Standard label: | Fair Value, Investment, Net Asset Value Per Share, Redemption Restriction, Lapse Date, Unknown [true false] |
| Name: | us-gaap:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareRedemptionRestrictionLapseDateNotEstimableFlag |
| Documentation: | Indicates (true false) whether timing on lapse of redemption restriction is unknown for investment measured at net asset value per share or unit. |
| Object type: | cm:Concept |
| Data type: | Yes/No (xbrli:booleanItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareRedemptionRestrictionLapseDateNotEstimableFlag |
| Label | Role | Language |
| Fair Value, Investment, Net Asset Value Per Share, Redemption Restriction, Lapse Date, Unknown [true false] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 820 10 50 6A (e) | http://www.xbrl.org/2003/role/disclosureRef | 820 |