| Name | LongTermContractsOrProgramsDisclosureTextBlock |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | nonnum:textBlockItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Long-term Contracts or Programs Disclosure [Text Block] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:CostsInExcessOfBillingsAndBillingsInExcessOfCostsTableTextBlock | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:ReceivablesLongTermContractsOrProgramsAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:BilledAndUnbilledContractClaimsSubjectToUncertaintyAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:ContractTerminationClaimsAndLoansAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:LossOnContractTermination | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:LossOnContractTerminationForDefault | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:ProvisionForLossOnContracts | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:InventoryForLongTermContractsOrProgramsAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:PreproductionCostsRelatedToLongTermSupplyArrangementsAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:PrerequisitesForBillingLongTermContracts | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:GovernmentContractReceivable | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:GovernmentContractReceivableProgessPaymentsOffset | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:AdvancePaymentsNettedAgainstClaimReceivable | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:ConstructionContractorLiquidityCharacteristic | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:ReceivablesLongTermContractsOrPrograms | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:UnbilledReceivablesNotBillableAtBalanceSheetDate | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors | |
us-gaap:UnbilledReceivablesNotBillableAtBalanceSheetDateAmountExpectedToBeCollectedAfterOneYear | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:DisclosureTextBlockAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/ComprehensiveTextBlockList | |
us-gaap:ContractorsAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/Contractors |