IndexDebt Securities, Available-for-sale, Cost of Security Sold or Transferred, Method, Average Cost [Member]
| Name | DebtSecuritiesAvailableForSaleCostOfSecuritySoldOrTransferredMethodAverageCostMember |
|---|---|
| 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 |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Debt Securities, Available-for-sale, Cost of Security Sold or Transferred, Method, Average Cost [Member] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Average cost method used to determine cost basis of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), sold or transferred. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
References
| Name | Value | Role |
|---|---|---|
| Publisher | FASB | http://www.xbrl.org/2003/role/exampleRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/exampleRef |
| Topic | 320 | http://www.xbrl.org/2003/role/exampleRef |
| SubTopic | 10 | http://www.xbrl.org/2003/role/exampleRef |
| Section | 50 | http://www.xbrl.org/2003/role/exampleRef |
| Paragraph | 9 | http://www.xbrl.org/2003/role/exampleRef |
| Subparagraph | (b) | http://www.xbrl.org/2003/role/exampleRef |
| URI | http://asc.fasb.org/extlink&oid=121645371&loc=d3e27357-111563 | http://www.xbrl.org/2003/role/exampleRef |
Related Parent Concepts
| Name | Relation Type | Role | |
|---|---|---|---|
 | us-gaap:DebtSecuritiesAvailableForSaleCostOfSecuritySoldMethodAbstract | domain-member | http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists |