| Standard label: | Business Combination, Bargain Purchase, Gain Recognized, Amount |
| Name: | us-gaap:BusinessCombinationBargainPurchaseGainRecognizedAmount |
| Documentation: | In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity. |
| 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:BusinessCombinationBargainPurchaseGainRecognizedAmount |
| Label | Role | Language |
| Business Combination, Bargain Purchase, Gain Recognized, Amount | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 805 30 50 1 (f)(1) | http://fasb.org/us-gaap/role/ref/legacyRef | 805 |
| FASB Accounting Standards Codification 805 30 25 2 | http://fasb.org/us-gaap/role/ref/legacyRef | 805 |
| FASB Accounting Standards Codification 805 30 25 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 805 |
| FASB Accounting Standards Codification 805 30 25 4 | http://fasb.org/us-gaap/role/ref/legacyRef | 805 |
| FASB Accounting Standards Codification 805 30 30 5 | http://fasb.org/us-gaap/role/ref/legacyRef | 805 |
| FASB Accounting Standards Codification 805 30 30 6 | http://fasb.org/us-gaap/role/ref/legacyRef | 805 |
| Part Of Roll Up: |
| us-gaap:NonoperatingGainsLosses |
| us-gaap:AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities |