| Name | ContractReceivableRetainageDueAfterOneYearAbstract |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Construction Contractor, Receivable, Retainage, after Year One [Abstract] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| SourceName | Revenue:Taxonomy Technical Improvement | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2020 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2019-10 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedLabels | true | http://fasb.org/srt/role/changeNote/changeNote |
| Source_ASU_Number | 2014-09 | http://fasb.org/srt/role/changeNote/changeNote |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:ConstructionContractorReceivableRetainageYearTwo | parent-child | http://fasb.org/us-gaap/role/disclosure/ReceivablesLoansNotesReceivableAndOthers | |
us-gaap:ConstructionContractorReceivableRetainageYearThree | parent-child | http://fasb.org/us-gaap/role/disclosure/ReceivablesLoansNotesReceivableAndOthers | |
us-gaap:ConstructionContractorReceivableRetainageYearFour | parent-child | http://fasb.org/us-gaap/role/disclosure/ReceivablesLoansNotesReceivableAndOthers | |
us-gaap:ConstructionContractorReceivableRetainageYearFive | parent-child | http://fasb.org/us-gaap/role/disclosure/ReceivablesLoansNotesReceivableAndOthers | |
us-gaap:ConstructionContractorReceivableRetainageAfterYearFive | parent-child | http://fasb.org/us-gaap/role/disclosure/ReceivablesLoansNotesReceivableAndOthers | |
us-gaap:ConstructionContractorReceivableRetainageAfterYearOne | parent-child | http://fasb.org/us-gaap/role/disclosure/ReceivablesLoansNotesReceivableAndOthers | |
us-gaap:ConstructionContractorReceivableRetainageYearTwo | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:ConstructionContractorReceivableRetainageYearThree | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:ConstructionContractorReceivableRetainageYearFour | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:ConstructionContractorReceivableRetainageYearFive | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:ConstructionContractorReceivableRetainageAfterYearFive | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:ConstructionContractorReceivableRetainageAfterYearOne | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:ContractReceivableRetainageAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/ReceivablesLoansNotesReceivableAndOthers | |
us-gaap:ContractReceivableRetainageAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors |