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Guarantees - Off-Balance Sheet Guaranteed Securities (Details) - Variable Interest Entity, Not Primary Beneficiary - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
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Guarantor Obligations [Line Items] |  |
Total off-balance sheet Farmer Mac Guaranteed Securities | $ 402,517 | $ 504,105
Farm & Ranch |  |
Guarantor Obligations [Line Items] |  |
Total off-balance sheet Farmer Mac Guaranteed Securities | 85,767 | 107,322
USDA Guarantees |  |
Guarantor Obligations [Line Items] |  |
Total off-balance sheet Farmer Mac Guaranteed Securities | 310,682 | 389,216
AgVantage Securities |  |
Guarantor Obligations [Line Items] |  |
Total off-balance sheet Farmer Mac Guaranteed Securities | $ 6,068 | $ 7,567

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12069-110248 + Details
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