| Standard label: | Deferred Finance Costs, Own-share Lending Arrangement, Issuance Costs, Amortization Expense |
| Name: | us-gaap:DeferredFinanceCostsOwnShareLendingArrangementIssuanceCostsAmortizationExpense1 |
| Documentation: | Amount of expense for amortization of deferred issuance costs associated with an own-share lending arrangement. |
| 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:DeferredFinanceCostsOwnShareLendingArrangementIssuanceCostsAmortizationExpense1 |
| Label | Role | Language |
| Deferred Finance Costs, Own-share Lending Arrangement, Issuance Costs, Amortization Expense | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 470 20 50 2A (h) | http://fasb.org/us-gaap/role/ref/legacyRef | 470 |
| Part Of Roll Up: |
| us-gaap:DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsAmortizationExpensePeriodIncreaseDecrease |