cm:Member: us-gaap:ChangeInAccountingMethodAccountedForAsChangeInEstimateMember
Change in Accounting Method Accounted for as Change in Estimate [Member] |
us-gaap:ChangeInAccountingMethodAccountedForAsChangeInEstimateMember |
A change from one acceptable accounting method to another based upon a revision in estimated future benefits or obligations. |
cm:Member |
[Member] (nonnum:domainItemType) |
For Period (duration) |
(no balance type) |
true |
us-gaap:ChangeInAccountingMethodAccountedForAsChangeInEstimateMember |