| Name | LeaseExpirationDate1 |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:dateItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Lease Expiration Date | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Date which lease or group of leases is set to expire, in CCYY-MM-DD format. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:NatureOfOperations | parent-child | http://fasb.org/us-gaap/role/disclosure/OrganizationConsolidationAndPresentationOfFinancialStatements | |
us-gaap:NatureOfOperations | parent-child | http://fasb.org/us-gaap/role/disclosure/AccountingPolicies |