| Name | StatementThatNoReserveEstimatesWereFiledWithAnotherFederalAuthorityOrAgency |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Statement that No Reserve Estimates Were Filed with Another Federal Authority or Agency | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| A statement of the fact that no reserve estimates were filed with another Federal authority or agency since the beginning of the last reporting period. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |