| Standard label: | Preferred Stock, Liquidation Preference Per Share |
| Name: | us-gaap:PreferredStockLiquidationPreference |
| Documentation: | The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. |
| Object type: | cm:Concept |
| Data type: | Share (num:perShareItemType) |
| Period type: | As Of (instant) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:PreferredStockLiquidationPreference |
| Label | Role | Language |
| Preferred Stock, Liquidation Preference Per Share | 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 235 10 S99 1 (SX 210.4-08(d)(1)) | http://fasb.org/us-gaap/role/ref/legacyRef | 235 |
| FASB Accounting Standards Codification 235 10 S99 1 (SX 210.4-08.(d)(1)) | http://fasb.org/us-gaap/role/ref/legacyRef | 235 |
| FASB Accounting Standards Codification 505 10 50 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 505 |
| FASB Accounting Standards Codification 505 10 50 4 | http://fasb.org/us-gaap/role/ref/legacyRef | 505 |