cm:Concept: us-gaap:MultiemployerPlansFundingImprovementPlanAndRehabilitationPlan
| Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan [Fixed List] |
| us-gaap:MultiemployerPlansFundingImprovementPlanAndRehabilitationPlan |
| Indicate whether a funding improvement plan or rehabilitation plan has been implemented or is pending for a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. The acceptable values are "no", "pending", "implemented", "other", and "NA". |
| cm:Concept |
| us-types:fundingImprovementAndRehabilitationPlanItemType |
| For Period (duration) |
| (no balance type) |
| false |
| us-gaap:MultiemployerPlansFundingImprovementPlanAndRehabilitationPlan |