| Standard label: | Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Amount |
| Name: | us-gaap:TroubledDebtRestructuringDebtorSubsequentPeriodsContingentPaymentsAmount |
| Documentation: | Amount of restructured debt contingently payable based on the occurrence of future events or circumstances. |
| 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:TroubledDebtRestructuringDebtorSubsequentPeriodsContingentPaymentsAmount |
| Label | Role | Language |
| Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Amount | http://www.xbrl.org/2003/role/label | en-US |
| Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Amount, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 470 60 50 2 | http://fasb.org/us-gaap/role/ref/legacyRef | 470 |