Details for Selection
| Standard label: | Revenue, Environmental Remediation Services |
| Name: | us-gaap:RevenueEnvironmentalRemediationServices |
| Documentation: | Revenue derived from providing environmental engineering and consulting; environmental testing and analysis; and remediation services. |
| Commentary: | |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For period (duration) |
| Balance type: | Credit |
| Object class: | [Concept] |