| Source | Taxonomy Implementation Guide | http://fasb.org/us-gaap/role/tin/resource |
| SourceName | Repurchase-to-Maturity Transactions and Repurchase Financings | http://fasb.org/us-gaap/role/tin/resource |
| pdfURI | https://www.fasb.org/repurchasetomaturityagreements_1 | http://fasb.org/us-gaap/role/tin/resource |
| inlineURI | https://xbrl.fasb.org/ix/?doc=../impdocs/REPO_TIG/inline-f2017repurchasetomaturitytransactionsig.htm | http://fasb.org/us-gaap/role/tin/resource |
| elementCreationTaxonomyVersion | 2015 | 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 | 210 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 20 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | 50 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 3 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Subparagraph | (a) | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Publisher | FASB | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2009/role/commonPracticeRef |
| Topic | 860 | http://www.xbrl.org/2009/role/commonPracticeRef |
| SubTopic | 30 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Section | 50 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Paragraph | 7 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Subparagraph | (a)(1) | http://www.xbrl.org/2009/role/commonPracticeRef |
| URI | https://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729 | http://www.xbrl.org/2009/role/commonPracticeRef |