cm:Concept: us-gaap:PreferredStockShareSubscriptions
| Preferred Stock, Shares Subscribed but Unissued |
| us-gaap:PreferredStockShareSubscriptions |
| The number of nonredeemable preferred stock (shares) (or preferred stock redeemable solely at the option of the issuer) allocated to investors to buy shares of a new issue of preferred stock before they are offered to the public. When stock is sold on a subscription basis, the issuer does not initially receive the total proceeds. In general, the issuer does not issue the shares to the investor until it receives the entire proceeds. |
| cm:Concept |
| Shares (xbrli:sharesItemType) |
| As Of (instant) |
| (no balance type) |
| false |
| us-gaap:PreferredStockShareSubscriptions |