| Standard label: | Forward Contract Indexed to Issuer's Equity [Table] |
| Name: | us-gaap:ForwardContractIndexedToIssuersEquityTable |
| Documentation: | Disclosures surrounding freestanding forward contracts issued by an entity that is indexed to, and potentially settled in an Entity's own stock along with the different characteristics of those forward contracts such as, forward contract rate, number of shares, indexed shares, settlement date(s), settlement alternatives, classification, and redemption requirements as applicable. |
| 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:ForwardContractIndexedToIssuersEquityTable |
| Label | Role | Language |
| Forward Contract Indexed to Issuer's Equity [Table] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 815 40 50 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 815 |
| FASB Accounting Standards Codification 815 40 50 4 | http://fasb.org/us-gaap/role/ref/legacyRef | 815 |
| FASB Accounting Standards Codification 815 40 50 5 | http://fasb.org/us-gaap/role/ref/legacyRef | 815 |