| Name | LossContingencyAccrualCarryingValuePeriodIncreaseDecrease |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Loss Contingency Accrual, Period Increase (Decrease) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Loss Contingency Accrual, Period Increase (Decrease), Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Amount of increase (decrease) in loss contingency liability. | 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 | 450 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 20 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | 50 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 1 | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:LossContingencyAccrualProvision | summation-item | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingencies | |
us-gaap:LossContingencyAccrualPayments | summation-item | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingencies |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:LossContingencyAccrualRollForward | parent-child | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingencies | |
us-gaap:LossContingencyAccrualRollForward | domain-member | http://fasb.org/us-gaap/role/disclosure/CommitmentAndContingenciesLossContingenciesTable |