| Standard label: | Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value |
| Name: | us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1 |
| Documentation: | Fair value at acquisition-date of the equity interest in the acquiree held by the acquirer, immediately before the acquisition date for businesses combined in stages. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:BusinessCombinationStepAcquisitionEquityInterestInAcquireeFairValue1 |
| Label | Role | Language |
| Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 805 10 50 2 (g)(1) | http://fasb.org/us-gaap/role/ref/legacyRef | 805 |
| Part Of Roll Up: |
| us-gaap:BusinessCombinationConsiderationTransferredIncludingEquityInterestInAcquireeHeldPriorToCombination1 |