| Standard label: | Debt Instrument, Unamortized Premium |
| Name: | us-gaap:DebtInstrumentUnamortizedPremium |
| Documentation: | Amount, after accumulated amortization, of debt premium. |
| 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:DebtInstrumentUnamortizedPremium |
| Label | Role | Language |
| Debt Instrument, Unamortized Premium | http://www.xbrl.org/2003/role/label | en-US |
| Debt Instrument, Unamortized Premium, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 835 30 45 1A | http://fasb.org/us-gaap/role/ref/legacyRef | 835 |
| FASB Accounting Standards Codification 835 30 55 8 | http://fasb.org/us-gaap/role/ref/legacyRef | 835 |