| Standard label: | Convertible Preferred Stock, Nonredeemable or Redeemable, Issuer Option, Value |
| Name: | us-gaap:ConvertiblePreferredStockNonredeemableOrRedeemableIssuerOptionValue |
| Documentation: | Value of outstanding nonredeemable convertible preferred stock or outstanding convertible preferred stock that is redeemable solely at the option of the issuer. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:ConvertiblePreferredStockNonredeemableOrRedeemableIssuerOptionValue |
| Label | Role | Language |
| Convertible Preferred Stock, Nonredeemable or Redeemable, Issuer Option, Value | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 210 10 S99 1 (SX 210.5-02(28)) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |
| FASB Accounting Standards Codification 505 10 50 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 505 |