cm:Concept: us-gaap:DescriptionOfLesseeLeasingArrangementsOperatingLeases
| Description of Lessee Leasing Arrangements, Operating Leases |
| us-gaap:DescriptionOfLesseeLeasingArrangementsOperatingLeases |
| A general description of the nature of the existing leasing arrangements of a lessee for all operating leases including, but not limited to: (1) rental escalation clauses; (2) renewal or purchase options; (3) guarantees or indemnities, if any, (4) restrictions imposed by lease arrangements; (5) unusual provisions or conditions; (6) contingent rentals, if any; and (7) lease expiration dates. |
| cm:Concept |
| Text/String (xbrli:stringItemType) |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:DescriptionOfLesseeLeasingArrangementsOperatingLeases |