cm:Concept: us-gaap:IncrementalCommonSharesAttributableToWrittenPutOptions
Incremental Common Shares Attributable to Dilutive Effect of Written Put Options |
us-gaap:IncrementalCommonSharesAttributableToWrittenPutOptions |
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of outstanding written put options using the reverse treasury stock method. |
cm:Concept |
Shares (xbrli:sharesItemType) |
For Period (duration) |
(no balance type) |
false |
us-gaap:IncrementalCommonSharesAttributableToWrittenPutOptions |