| Positive_XBRL_Value | Gain | http://fasb.org/us-gaap/role/tin/value |
| Negative_XBRL_Value | Loss | http://fasb.org/us-gaap/role/tin/value |
| Source | Taxonomy Implementation Guide | http://fasb.org/us-gaap/role/tin/resource |
| SourceName | Financial Instruments-Debt Securities | http://fasb.org/us-gaap/role/tin/resource |
| pdfURI | https://www.fasb.org/debtsecurities_1 | http://fasb.org/us-gaap/role/tin/resource |
| elementCreationTaxonomyVersion | 2018 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| Publisher | FASB | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
| Topic | 220 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 10 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | S99 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 2 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Subparagraph | (SX 210.5-03(7)(c)) | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 | http://fasb.org/us-gaap/role/ref/legacyRef |