cm:Level2TextBlock: us-gaap:StockholdersEquityNoteRedeemablePreferredStockIssuePolicy
Stockholders' Equity Note, Redeemable Preferred Stock, Issue, Policy [Policy Text Block] |
us-gaap:StockholdersEquityNoteRedeemablePreferredStockIssuePolicy |
Disclosure of accounting policy for redeemable preferred stock issued. This disclosure may include the accounting treatment for the difference, if there is any, between the carrying value and redemption amount. For example, describe whether the issuer accretes changes in the redemption value. |
cm:Level2TextBlock |
Text Block (HTML) (nonnum:textBlockItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:StockholdersEquityNoteRedeemablePreferredStockIssuePolicy |