cm:Concept: us-gaap:RetainedEarningsEffectiveDatesOfNewRetainedEarningsAccountEstablishedAfterReadjustment
Retained Earnings, Effective Date of New Retained Earnings Account Established after Readjustment |
us-gaap:RetainedEarningsEffectiveDatesOfNewRetainedEarningsAccountEstablishedAfterReadjustment |
Effective date of a new retained earnings account established after a readjustment (for example, but not limited to, quasi-reorganization), in CCYY-MM-DD format. |
cm:Concept |
Date (xbrli:dateItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:RetainedEarningsEffectiveDatesOfNewRetainedEarningsAccountEstablishedAfterReadjustment |