| Standard label: | Fair Value, by Balance Sheet Grouping [Table] |
| Name: | us-gaap:FairValueByBalanceSheetGroupingTable |
| Documentation: | Disclosure of information about the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. |
| Object type: | cm:Table |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | true |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:FairValueByBalanceSheetGroupingTable |
| Label | Role | Language |
| Fair Value, by Balance Sheet Grouping [Table] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 820 10 50 2 (a) | http://fasb.org/us-gaap/role/ref/legacyRef | 820 |
| FASB Accounting Standards Codification 825 10 50 11 | http://fasb.org/us-gaap/role/ref/legacyRef | 825 |
| FASB Accounting Standards Codification 825 10 50 12 | http://fasb.org/us-gaap/role/ref/legacyRef | 825 |