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Farmer Mac Guaranteed Securities and USDA Securities - Unrealized Loss Position (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
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Unrealized loss position for less than 12 months |  |
Unrealized loss position for less than 12 months, Fair Value | $ 656,616 | $ 537,162
Unrealized loss position for less than 12 months, Unrealized Loss | (2,242) | (636)
Unrealized loss position for more than 12 months |  |
Unrealized loss position for more than 12 months, Fair Value | 48,711 | 349,825
Unrealized loss position for more than 12 months, Unrealized Loss | (578) | (2,944)
Farmer Mac Guaranteed Securities and USDA Securities |  |
Unrealized loss position for less than 12 months |  |
Fair Value | 1,596,866 | 49,939
Unrealized Loss | (8,134) | (61)
Unrealized loss position for more than 12 months |  |
Fair Value | 16,671 | 21,061
Unrealized Loss | (791) | (560)
AgVantage Securities | Farmer Mac Guaranteed Securities |  |
Unrealized loss position for less than 12 months |  |
Fair Value | 1,596,866 | 49,939
Unrealized Loss | (8,134) | (61)
Unrealized loss position for more than 12 months |  |
Fair Value | 0 | 0
Unrealized Loss | 0 | 0
Unrealized loss position for less than 12 months |  |
Unrealized loss position for less than 12 months, Fair Value | 1,204,379 | 133,703
Unrealized loss position for less than 12 months, Unrealized Loss | (13,381) | (231)
Unrealized loss position for more than 12 months |  |
Unrealized loss position for more than 12 months, Fair Value | 90,853 | 981,757
Unrealized loss position for more than 12 months, Unrealized Loss | (2,920) | (15,007)
USDA Securities | USDA Securities: |  |
Unrealized loss position for less than 12 months |  |
Fair Value | 0 | 0
Unrealized Loss | 0 | 0
Unrealized loss position for more than 12 months |  |
Fair Value | 16,671 | 21,061
Unrealized Loss | $ (791) | $ (560)

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