| Standard label: | Restructuring Reserve, Adjustment Description |
| Name: | us-gaap:RestructuringReserveAdjustmentDescription |
| Documentation: | Description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments. |
| Object type: | cm:Concept |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:RestructuringReserveAdjustmentDescription |
| Label | Role | Language |
| Restructuring Reserve, Adjustment Description | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 420 10 50 1 (b)(2) | http://www.xbrl.org/2003/role/disclosureRef | 420 |
| FASB Accounting Standards Codification 420 10 50 1 (d) | http://www.xbrl.org/2003/role/disclosureRef | 420 |
| FASB Accounting Standards Codification 420 10 S99 2 (SAB Topic 5.P.4(b)(2)) | http://www.xbrl.org/2003/role/disclosureRef | 420 |
| FASB Accounting Standards Codification 420 10 S99 2 (SAB Topic 5.P.4(d)) | http://www.xbrl.org/2003/role/disclosureRef | 420 |