| Standard label: | Disposal Group, Including Discontinued Operation, Deferred Revenue, Current |
| Name: | us-gaap:DisposalGroupIncludingDiscontinuedOperationDeferredRevenueCurrent |
| Documentation: | Amount classified as deferred revenue attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. |
| 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:DisposalGroupIncludingDiscontinuedOperationDeferredRevenueCurrent |
| Label | Role | Language |
| Disposal Group, Including Discontinued Operation, Deferred Revenue, Current | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 205 20 50 5B (e) | http://fasb.org/us-gaap/role/ref/legacyRef | 205 |
| FASB Accounting Standards Codification 205 20 45 10 | http://fasb.org/us-gaap/role/ref/legacyRef | 205 |
| FASB Accounting Standards Codification 205 20 45 11 | http://fasb.org/us-gaap/role/ref/legacyRef | 205 |
| FASB Accounting Standards Codification 360 10 50 3 (e) | http://fasb.org/us-gaap/role/ref/legacyRef | 360 |
| FASB Accounting Standards Codification 360 10 45 9 | http://fasb.org/us-gaap/role/ref/legacyRef | 360 |
| Part Of Roll Up: |
| us-gaap:LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent |