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GUARANTEES AND COMMITMENTS - Off-Balance Sheet Guaranteed Securities (Details) - Farmer Mac Guaranteed USDA Securities - Unconsolidated VIE - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
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Guarantor Obligations [Line Items] |  |
Total off-balance sheet Farmer Mac Guaranteed Securities | $ 443,843 | $ 452,602
Agricultural Finance |  |
Guarantor Obligations [Line Items] |  |
Total off-balance sheet Farmer Mac Guaranteed Securities | $ 443,843 | $ 452,602

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