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Subsequent Events - Summary of Borrowings by Type (Details) - USD ($) | Feb. 04, 2021 | Jan. 28, 2021 | Dec. 10, 2020 | Jun. 25, 2020 | Jan. 15, 2021 | Jan. 08, 2021 | Jan. 07, 2021 | Jan. 10, 2020 | Dec. 05, 2014
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Farm Credit West, FLCA |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  | $ 2,160,000 | $ 8,500,000 |  |  |  |  |
Term of debt |  |  | 24 years 6 months | 25 years |  |  |  |  |
Stated interest rate (as percent) |  |  | 3.70% | 3.75% |  |  |  |  |
Farmer Mac |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  | $ 225,000,000.0 |  |  |  |  | $ 8,100,000 | $ 125,000,000.0
Stated interest rate (as percent) |  |  |  |  |  |  |  | 2.66% |
Subsequent Event | Farm Credit West, FLCA |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  | $ 2,073,000 |  |  |  | $ 2,160,000 |  |  |
Term of debt |  | 24 years 9 months 18 days |  |  |  |  |  |  |
Stated interest rate (as percent) |  | 3.23% |  |  |  | 3.70% | 3.00% |  |
Subsequent Event | Farmer Mac |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount | $ 2,460,000 |  |  |  |  |  |  |  |
Term of debt | 25 years |  |  |  |  |  |  |  |
Stated interest rate (as percent) | 3.13% |  |  |  |  |  |  |  |
Subsequent Event | Rabo AgriFinance, LLC Agreement 3.21% interest rate fixed throughout term |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  | $ 37,170,000 |  |  |  |
Stated interest rate (as percent) |  |  |  |  | 3.21% |  |  |  |
Subsequent Event | Rabo AgriFinance, LLC Agreement 3.21% interest rate fixed throughout term | LIBOR |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Variable rate (as percent) |  |  |  |  | 2.00% |  |  |  |
Subsequent Event | Rabo AgriFinance, LLC Agreement 2.46% interest rate fixed throughout term |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  | $ 6,195,000 |  |  |  |
Stated interest rate (as percent) |  |  |  |  | 2.46% |  |  |  |
Subsequent Event | Rabo AgriFinance, LLC Agreement 2.46% interest rate fixed throughout term | LIBOR |  |  |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |
Variable rate (as percent) |  |  |  |  | 2.00% |  |  |  |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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