IndexAvailable-for-sale Securities, Gross Unrealized Gain (Loss) (Deprecated 2018-01-31)
| Name | AvailableforsaleSecuritiesGrossUnrealizedGainLoss1 |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | credit |
| Nillable | True |
| Abstract | False |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Available-for-sale Securities, Gross Unrealized Gain (Loss) (Deprecated 2018-01-31) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Available-for-sale Securities, Gross Unrealized Gain (Loss), Total (Deprecated 2018-01-31) | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Amount of unrealized gain (loss) on investments in debt and equity securities classified as available-for-sale securities. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
Related Parent Concepts
| Name | Relation Type | Role | |
|---|---|---|---|
 | us-gaap:DeprecatedItems | parent-child | http://fasb.org/us-gaap/role/deprecated/deprecated |
| us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax | essence-alias | http://fasb.org/us-gaap/role/deprecated/deprecated |
| us-gaap:OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax | dep-concept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated |