| Name | ChangeDuringPeriodFairValueDisclosureMember |
|---|---|
| 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 |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Changes Measurement [Member] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Measure of change in fair value. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| Publisher | FASB | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
| Topic | 825 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 10 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | 50 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 30 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Subparagraph | (a) | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:FairValueDisclosureItemAmountsDomain | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosures | |
us-gaap:FairValueDisclosureItemAmountsDomain | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosuresFairValueByBalanceSheetGroupingTable | |
us-gaap:FairValueDisclosureItemAmountsDomain | domain-member | http://fasb.org/us-gaap/role/disclosure/FinancialInstrumentsFairValueDisclosuresFairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareTable |