| Standard label: | SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount |
| Name: | us-gaap:ValuationAllowancesAndReservesBalance |
| Documentation: | Amount of valuation and qualifying accounts and reserves. |
| 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:ValuationAllowancesAndReservesBalance |
| Label | Role | Language |
| SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount | http://www.xbrl.org/2003/role/label | en-US |
| SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount, Ending Balance | http://www.xbrl.org/2003/role/periodEndLabel | en-US |
| SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount, Beginning Balance | http://www.xbrl.org/2003/role/periodStartLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 235 10 S99 4 (SX 210.12-09) | http://www.xbrl.org/2003/role/disclosureRef | 235 |