XML 72 R61.htm IDEA: XBRL DOCUMENT
v3.21.1

Guarantees - Schedule of Underlying Off-Balance Sheet Guaranteed Securities (Details) - Farmer Mac Guaranteed Securities - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Guarantor Obligations [Line Items] |  |  |
Guarantee and commitment obligation | $ 1,492 |  | $ 1,625
Weighted-average remaining maturity | 9 years 6 months | 9 years 6 months |
AgVantage Securities |  |  |
Guarantor Obligations [Line Items] |  |  |
Weighted-average remaining maturity | 3 years 8 months 12 days | 4 years |

X
- Definition Weighted average remaining maturity, Loans underlying guarantees not held by transferor + References No definition available. + Details
Name: | agm_WeightedAverageRemainingMaturityLoansUnderlyingGuaranteesNotHeldByTransferor
Namespace Prefix: | agm_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + 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 (c) -URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12069-110248 + Details
Name: | us-gaap_GuaranteeObligationsCurrentCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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
Name: | us-gaap_GuaranteeObligationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_GuaranteeObligationsByNatureAxis=agm_FarmerMacGuaranteedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=agm_InstitutionalCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |