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Farmer Mac Guaranteed Securities and USDA Securities - Narrative (Details) - Institutional Credit - Farmer Mac Guaranteed Securities - security | Dec. 31, 2019 | Dec. 31, 2018
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Debt Securities, Available-for-sale [Line Items] |  |
Available-for-sale, securities in unrealized loss positions | 17 | 38
Held-to-maturity, securities in unrealized loss positions | 4 | 43
Number of securities in loss position | 13 | 21

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- Definition Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563 + Details
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