cm:Table: us-gaap:ScheduleOfRestructuringAndRelatedCostsTable
| Schedule of Restructuring and Related Costs [Table] |
| us-gaap:ScheduleOfRestructuringAndRelatedCostsTable |
| Table presenting the description of the restructuring costs, such as the expected cost; the costs incurred during the period; the cumulative costs incurred as of the balance sheet date; the income statement caption within which the restructuring charges recognized for the period are included; and the amount of and periodic changes to an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost by type of restructuring. |
| cm:Table |
| Text/String (xbrli:stringItemType) |
| For Period (duration) |
| (no balance type) |
| true |
| us-gaap:ScheduleOfRestructuringAndRelatedCostsTable |