| Standard label: | Restructuring Charges |
| Name: | us-gaap:RestructuringCharges |
| Documentation: | Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:RestructuringCharges |
| Label | Role | Language |
| Restructuring Charges | http://www.xbrl.org/2003/role/label | en-US |
| Restructuring Charges, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 230 10 45 28 (b) | http://fasb.org/us-gaap/role/ref/legacyRef | 230 |
| FASB Accounting Standards Codification 420 10 50 1 (b) | http://fasb.org/us-gaap/role/ref/legacyRef | 420 |
| FASB Accounting Standards Codification 420 10 S99 1 (SAB Topic 5.P.3) | http://fasb.org/us-gaap/role/ref/legacyRef | 420 |
| FASB Accounting Standards Codification 420 10 S99 2 (SAB Topic 5.P.4(b)) | http://fasb.org/us-gaap/role/ref/legacyRef | 420 |
| Part Of Roll Up: |
| us-gaap:RestructuringSettlementAndImpairmentProvisions |
| us-gaap:RestructuringCosts |