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Fair Value Disclosures - Quantitative Information (Details) $ in Thousands | Sep. 30, 2023 USD ($) | Dec. 31, 2022 USD ($)
--- | --- | ---
Farmer Mac Guaranteed Securities |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | $ 5,058,697 |
Floating Interest Rate | Floating rate auction-rate certificates backed by Government guaranteed student loans |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | 19,033 | $ 19,027
Recurring |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Guarantee Asset | 5,963 | 4,467
Recurring | Farmer Mac Guaranteed Securities |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | 5,058,697 | 7,607,226
Recurring | Floating Interest Rate | Floating rate auction-rate certificates backed by Government guaranteed student loans |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | 19,033 | 19,027
Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Guarantee Asset | 5,963 | 4,467
Recurring | Level 3 | Farmer Mac Guaranteed Securities |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | 5,058,697 | 7,607,226
Recurring | Level 3 | Floating Interest Rate | Floating rate auction-rate certificates backed by Government guaranteed student loans |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | 19,033 | 19,027
Farmer Mac Guaranteed Securities | Farmer Mac Guaranteed Securities |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | 10,000 | 7,800
USDA Securities: | Recurring |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Trading | 1,302 | 1,767
USDA Securities: | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Trading | 1,302 | 1,767
AgVantage Securities | Recurring | Farmer Mac Guaranteed Securities |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | 5,048,708 | 7,599,379
AgVantage Securities | Recurring | Level 3 | Farmer Mac Guaranteed Securities |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | 5,048,708 | 7,599,379
Farmer Mac Guaranteed USDA Securities | Recurring | Farmer Mac Guaranteed Securities |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | 9,989 | 7,847
Farmer Mac Guaranteed USDA Securities | Recurring | Level 3 | Farmer Mac Guaranteed Securities |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | 9,989 | 7,847
USDA Securities | USDA Securities: | Recurring |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Trading | 1,302 | 1,767
USDA Securities | USDA Securities: | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Trading | $ 1,302 | $ 1,767
Range of broker quotes | Minimum | Floating rate auction-rate certificates backed by Government guaranteed student loans | Indicative bids | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities, measurement input | 0.968 | 0.968
Range of broker quotes | Maximum | Floating rate auction-rate certificates backed by Government guaranteed student loans | Indicative bids | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities, measurement input | 0.968 | 0.968
Range of broker quotes | Weighted Average | Floating rate auction-rate certificates backed by Government guaranteed student loans | Indicative bids | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities, measurement input | 0.968 | 0.968
Discount rate | Minimum | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Guarantee asset, measurement input | 0.085 | 0.054
Discount rate | Minimum | AgVantage Securities | Farmer Mac Guaranteed Securities | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities, measurement input | 0.054 | 0.047
Discount rate | Minimum | Farmer Mac Guaranteed USDA Securities | Farmer Mac Guaranteed Securities | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities, measurement input | 0.085 | 0.048
Discount rate | Minimum | USDA Securities | USDA Securities: | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
USDA securities, measurement input | 0.059 | 0.051
Discount rate | Maximum | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Guarantee asset, measurement input |  | 0.059
Discount rate | Maximum | AgVantage Securities | Farmer Mac Guaranteed Securities | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities, measurement input | 0.060 | 0.061
Discount rate | Maximum | Farmer Mac Guaranteed USDA Securities | Farmer Mac Guaranteed Securities | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities, measurement input |  | 0.053
Discount rate | Maximum | USDA Securities | USDA Securities: | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
USDA securities, measurement input | 0.061 | 0.057
Discount rate | Weighted Average | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Guarantee asset, measurement input |  | 0.057
Discount rate | Weighted Average | AgVantage Securities | Farmer Mac Guaranteed Securities | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities, measurement input | 0.057 | 0.051
Discount rate | Weighted Average | Farmer Mac Guaranteed USDA Securities | Farmer Mac Guaranteed Securities | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities, measurement input |  | 0.051
Discount rate | Weighted Average | USDA Securities | USDA Securities: | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
USDA securities, measurement input | 0.060 | 0.053
CPR | Farmer Mac Guaranteed USDA Securities | Farmer Mac Guaranteed Securities | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Investment securities, measurement input | 0.03 | 0.08
CPR | Minimum | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Guarantee asset, measurement input | 0.03 | 0.08
CPR | Minimum | USDA Securities | USDA Securities: | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
USDA securities, measurement input | 0.11 | 0.19
CPR | Maximum | USDA Securities | USDA Securities: | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
USDA securities, measurement input | 0.11 | 0.27
CPR | Weighted Average | USDA Securities | USDA Securities: | Discounted cash flow | Recurring | Level 3 |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
USDA securities, measurement input | 0.11 | 0.25

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