| Standard label: | Option Indexed to Issuer's Equity, Strike Price |
| Name: | us-gaap:OptionIndexedToIssuersEquityStrikePrice1 |
| Documentation: | Exercise or strike price stated in the contract for options indexed to the issuer's equity shares. |
| Object type: | cm:Concept |
| Data type: | Share (num:perShareItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:OptionIndexedToIssuersEquityStrikePrice1 |
| Label | Role | Language |
| Option Indexed to Issuer's Equity, Strike Price | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 480 10 50 2 (f)(1) | http://fasb.org/us-gaap/role/ref/legacyRef | 480 |
| FASB Accounting Standards Codification 815 40 50 5 (a)(2) | http://fasb.org/us-gaap/role/ref/legacyRef | 815 |