| Standard label: | Redeemable Noncontrolling Interest, Equity, Redemption Value |
| Name: | us-gaap:RedeemableNoncontrollingInterestEquityRedemptionValue |
| Documentation: | Redemption value, as if currently redeemable, of redeemable noncontrolling interest classified as temporary equity and the election has been made to accrete changes in redemption value to the earliest redemption date. |
| 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:RedeemableNoncontrollingInterestEquityRedemptionValue |
| Label | Role | Language |
| Redeemable Noncontrolling Interest, Equity, Redemption Value | http://www.xbrl.org/2003/role/label | en-US |
| Redeemable Noncontrolling Interest, Equity, Redemption Value, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 480 10 S99 3A 24(b) | http://fasb.org/us-gaap/role/ref/legacyRef | 480 |