IndexContracts Accounted for under Percentage of Completion [Member]
| Name | ContractsAccountedForUnderPercentageOfCompletionMember |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | nonnum:domainItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Modifications to or changes in assumptions surrounding contracts accounted for under the percentage of completion method of accounting. Percentage of completion is a method of accounting whereby profit on a long-term (construction) contracts is recognized based on reliable estimates as to the degree of completion generally based on contractual relationships (costs incurred to total costs anticipated). | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Contracts Accounted for under Percentage of Completion [Member] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |