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Financial Derivatives - Hedged Items in Fair Value Hedging Relationships (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
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Available-for-Sale Securities |  |
HedgedItemsinFairValueHedgingRelationship [Line Items] |  |
Carrying Amount of Hedged Assets/(Liabilities) | $ 167,970 | $ 0
Hedged Asset | (1,549) | 0
Loans |  |
HedgedItemsinFairValueHedgingRelationship [Line Items] |  |
Carrying Amount of Hedged Assets/(Liabilities) | 1,604,954 | 1,692,609
Hedged Asset | 11,378 | 111,333
Loans | No hedge designation |  |
HedgedItemsinFairValueHedgingRelationship [Line Items] |  |
Hedged Asset | 1,200 | 1,400
Long-term Debt |  |
HedgedItemsinFairValueHedgingRelationship [Line Items] |  |
Carrying Amount of Hedged Assets/(Liabilities) | (5,730,114) | (3,006,140)
Hedged Liability | (14,136) | (53,240)
Farmer Mac Guaranteed Securities |  |
HedgedItemsinFairValueHedgingRelationship [Line Items] |  |
Carrying Amount of Hedged Assets/(Liabilities) | 3,798,859 | 4,244,027
Hedged Asset | 232,379 | 382,825
Farmer Mac Guaranteed Securities | No hedge designation |  |
HedgedItemsinFairValueHedgingRelationship [Line Items] |  |
Hedged Asset | $ 1,400 | $ 1,600

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- Definition [Line Items] for HedgedItemsinFairValueHedgingRelationship [Table] + References No definition available. + Details
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- Definition Amount of hedged item in hedging relationship. Excludes hedged asset or liability. + References No definition available. + Details
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- Definition Amount of cumulative increase (decrease) in fair value of hedged asset in fair value hedge, attributable to hedged risk. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4EE -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959 + Details
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- Definition Amount of cumulative increase (decrease) in fair value of hedged liability in fair value hedge, attributable to hedged risk. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4EE -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959 + Details
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