| Name | ReorganizationChapter11PlanEffectAdjustmentMember |
|---|---|
| Namespace | http://fasb.org/us-gaap/2021-01-31 |
| Prefix | us-gaap |
| Data type | dtr-types:domainItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Reorganization, Chapter 11, Plan Effect Adjustment [Member] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Adjustment for effect of confirmation plan in reorganization under Chapter 11 of Bankruptcy Code. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| elementCreationTaxonomyVersion | 2021 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| SourceName | Reorganization:Taxonomy Technical Improvement | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2021 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2020-09 | http://fasb.org/srt/role/changeNote/changeNote |
| NewElement | true | http://fasb.org/srt/role/changeNote/changeNote |
| Publisher | FASB | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/disclosureRef |
| Topic | 852 | http://www.xbrl.org/2003/role/disclosureRef |
| SubTopic | 10 | http://www.xbrl.org/2003/role/disclosureRef |
| Section | 50 | http://www.xbrl.org/2003/role/disclosureRef |
| Paragraph | 7 | http://www.xbrl.org/2003/role/disclosureRef |
| Subparagraph | (b) | http://www.xbrl.org/2003/role/disclosureRef |
| URI | http://asc.fasb.org/extlink&oid=124433192&loc=SL2890621-112765 | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:DischargeOfDebtMember | parent-child | http://fasb.org/us-gaap/role/disclosure/Reorganizations | |
us-gaap:ExchangeOfStockForStockMember | parent-child | http://fasb.org/us-gaap/role/disclosure/Reorganizations | |
us-gaap:DischargeOfDebtMember | domain-member | http://fasb.org/us-gaap/role/disclosure/ReorganizationsFreshStartAdjustmentsTable | |
us-gaap:ExchangeOfStockForStockMember | domain-member | http://fasb.org/us-gaap/role/disclosure/ReorganizationsFreshStartAdjustmentsTable |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:TypeOfFreshStartAdjustmentDomain | parent-child | http://fasb.org/us-gaap/role/disclosure/Reorganizations | |
us-gaap:TypeOfFreshStartAdjustmentDomain | domain-member | http://fasb.org/us-gaap/role/disclosure/ReorganizationsFreshStartAdjustmentsTable |