| Standard label: | Proceeds from Issuance of Long-term Debt and Capital Securities, Net |
| Name: | us-gaap:ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet |
| Documentation: | The cash inflow associated with security instrument that either represents a creditor or an ownership relationship with the holder of the investment security with a maturity of beyond one year or normal operating cycle, if longer. Includes proceeds from (a) debt, (b) capital lease obligations, (c) mandatory redeemable capital securities, and (d) any combination of (a), (b), or (c). |
| 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:ProceedsFromIssuanceOfLongTermDebtAndCapitalSecuritiesNet |
| Label | Role | Language |
| Proceeds from Issuance of Long-term Debt and Capital Securities, Net | http://www.xbrl.org/2003/role/label | en-US |
| Proceeds from Issuance of Long-term Debt and Capital Securities, Net, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 230 10 45 14 (a),(b) | http://fasb.org/us-gaap/role/ref/legacyRef | 230 |
| Part Of Roll Up: |
| us-gaap:ProceedsFromRepaymentsOfLongTermDebtAndCapitalSecurities |