| Standard label: | Restructuring Reserve |
| Name: | us-gaap:RestructuringReserve |
| Documentation: | Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. |
| 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:RestructuringReserve |
| Label | Role | Language |
| Restructuring Reserve | http://www.xbrl.org/2003/role/label | en-US |
| Restructuring Reserve, Ending Balance | http://www.xbrl.org/2003/role/periodEndLabel | en-US |
| Restructuring Reserve, Beginning Balance | http://www.xbrl.org/2003/role/periodStartLabel | en-US |
| Restructuring Reserve, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 420 10 50 1 (b)(2) | 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 |