| Standard label: | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |
| Name: | us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet |
| Documentation: | Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed. |
| 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:BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet |
| Label | Role | Language |
| Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | http://www.xbrl.org/2003/role/label | en-US |
| Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 805 10 55 37 | http://fasb.org/us-gaap/role/ref/legacyRef | 805 |
| FASB Accounting Standards Codification 805 20 50 1 (c) | http://fasb.org/us-gaap/role/ref/legacyRef | 805 |
| Part Of Roll Up: |
| us-gaap:BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet |