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Guarantees and Commitments - Reserve For Losses (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Jun. 30, 2021 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | --- | --- | --- | --- | ---
Guarantor Obligations [Line Items] |  |  |  |  |  |
Reserve for losses | $ 2,000 |  | $ 3,277 |  |  |
Farm & Ranch |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Reserve for losses | 1,103 | $ 1,194 | 2,097 | $ 2,278 | $ 1,650 | $ 2,164
Rural Utilities |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Reserve for losses | 897 | $ 917 | 1,180 | $ 1,290 | $ 1,370 | $ 0
LTSPCs and Farmer Mac Guaranteed Securities | Farm & Ranch |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Reserve for losses | 1,103 |  | 2,097 |  |  |
LTSPCs | Rural Utilities |  |  |  |  |  |
Guarantor Obligations [Line Items] |  |  |  |  |  |
Reserve for losses | $ 897 |  | $ 1,180 |  |  |

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- Definition The reserve for guarantee losses is a liability account in the consolidated balance sheets that reflects an estimate of incurred credit losses related to the guaranty of unconsolidated trusts and other credit guarantees + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- 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
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- Details
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- Details
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- Details
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- Details
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