Details for Selection
| Standard label: | Maintenance Cost, Policy [Policy Text Block] |
| Name: | us-gaap:MaintenanceCostPolicyPolicyTextBlock |
| Documentation: | Disclosure of the accounting policy for maintenance costs. Does not include planned major maintenance activities. |
| Commentary: | |
| Data type: | Text Block (HTML) (nonnum:textBlockItemType) |
| Period type: | For period (duration) |
| Balance type: | |
| Object class: | [Text Block] |