| Name | EffectiveIncomeTaxRateReconciliationDeductions |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | num:percentItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Effective Income Tax Rate Reconciliation, Deduction, Percent | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Effective Income Tax Rate Reconciliation, Deduction, Percent, Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations attributable to deduction. Includes, but is not limited to, dividend deduction, deduction for dividend paid to employee stock ownership plan (ESOP), Medicare prescription drug benefit subsidy deduction, and other deductions. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| SourceName | Reference Project:Taxonomy Technical Improvement | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2020 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2019-12 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedReferences | true | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedDocumentation | true | http://fasb.org/srt/role/changeNote/changeNote |
| PreviousDocumentation | Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deductions. Including, but not limited to, extraterritorial income exclusion deduction, qualified production activity deduction, dividend deduction, deduction for dividend paid to employee stock ownership plan, Medicare prescription drug benefit subsidy deduction, and other deductions. | http://fasb.org/srt/role/changeNote/changeNote |
| Publisher | FASB | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2009/role/commonPracticeRef |
| Topic | 740 | http://www.xbrl.org/2009/role/commonPracticeRef |
| SubTopic | 10 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Section | 50 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Paragraph | 12 | http://www.xbrl.org/2009/role/commonPracticeRef |
| URI | http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Publisher | FASB | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2009/role/commonPracticeRef |
| Topic | 740 | http://www.xbrl.org/2009/role/commonPracticeRef |
| SubTopic | 10 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Section | S99 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Paragraph | 1 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Subparagraph | (SAB Topic 6.I.Fact.4) | http://www.xbrl.org/2009/role/commonPracticeRef |
| URI | http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:EffectiveIncomeTaxRateReconciliationDeductionsExtraterritorialIncomeExclusion | summation-item | http://fasb.org/us-gaap/role/disclosure/IncomeTaxes | |
us-gaap:EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities | summation-item | http://fasb.org/us-gaap/role/disclosure/IncomeTaxes | |
us-gaap:EffectiveIncomeTaxRateReconciliationDeductionsDividends | summation-item | http://fasb.org/us-gaap/role/disclosure/IncomeTaxes | |
Effective Income Tax Rate Reconciliation, Deduction, Employee Stock Ownership Plan Dividend, Percent us-gaap:EffectiveIncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends | summation-item | http://fasb.org/us-gaap/role/disclosure/IncomeTaxes | |
us-gaap:EffectiveIncomeTaxRateReconciliationDeductionsMedicarePrescriptionDrugBenefit | summation-item | http://fasb.org/us-gaap/role/disclosure/IncomeTaxes | |
us-gaap:EffectiveIncomeTaxRateReconciliationDeductionsOther | summation-item | http://fasb.org/us-gaap/role/disclosure/IncomeTaxes |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:EffectiveIncomeTaxRateReconciliationDeductionsAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/IncomeTaxes | |
us-gaap:EffectiveIncomeTaxRateContinuingOperations | summation-item | http://fasb.org/us-gaap/role/disclosure/IncomeTaxes |