Carrying amount of convertible notes receivable.

No definition available.

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- Definition

Represents the number of farms sold during the period.

+ References

No definition available.

+ Details

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- Definition

Percentage of gross book value on which quarterly management fee is earned in a related party transaction.

+ References

No definition available.

+ Details

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- Definition

Represents the percentage of ownership interest held by the related party.

+ References

No definition available.

+ Details

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- Definition

The threshold amount of gross book value.

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

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Balance Type:	credit
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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Cash received for the sale of real estate that is not part of an investing activity during the current period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3179-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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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Balance Type:	na
Period Type:	duration

- Definition

Reflects the sum of all other revenue and income realized from sales and other transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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Name:	us-gaap_RelatedPartyTransactionAxis=us-gaap_LeaseAgreementsMember
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Name:	srt_OwnershipAxis=fpi_OpportunityZoneFundLlcMember
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Name:	us-gaap_TypeOfArrangementAxis=fpi_PromisedLandOpportunityZoneFarmsILlcMember
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Related Party Transactions (Details)			1 Months Ended	3 Months Ended		9 Months Ended
Related Party Transactions (Details)	Mar. 31, 2021 USD ($) item	Mar. 05, 2021 item	Mar. 31, 2021 USD ($) item	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Jul. 16, 2021	Jul. 21, 2015
Related Party Transactions
Received cash						$ 16,900,000	$ 28,700,000
Gain on sale of assets				$ (48,000)	$ (112,000)	3,948,000	3,355,000
Convertible Notes Receivable					2,400,000		2,400,000
Opportunity Zone Fund LLC
Related Party Transactions
Received cash			$ 19,100,000
Gain on sale of assets			2,400,000
Convertible Notes Receivable	$ 2,400,000		2,400,000
American Agriculture Aviation, LLC \| Lease agreements
Related Party Transactions
Related party, transaction amount				$ 20,000.00	30,000.00	$ 90,000.00	120,000
Opportunity Zone Fund LLC
Related Party Transactions
Noncontrolling ownership interest (as a percent)				9.97%		9.97%		7.60%
Paul A. Pittman \| American Agriculture Aviation, LLC
Related Party Transactions
Related party transaction, percentage of ownership interest held by related party									100.00%
Promised Land Opportunity Zone Farms I, LLC
Related Party Transactions
Management fee				$ 110,000	$ 50,000.00	$ 310,000	$ 100,000
Number of farms sold \| item	10	9
Received cash	$ 19,100,000
Gain on sale of assets			2,400,000
Convertible Notes Receivable	$ 2,400,000		$ 2,400,000	$ 2,400,000		$ 2,400,000
Promised Land Opportunity Zone Farms I, LLC \| Opportunity Zone Fund LLC
Related Party Transactions
Number of farms sold \| item		9	10
Gross Book Value Less Than $50 Million
Related Party Transactions
Percentage of gross book value						0.2125%
Gross book value						$ 50,000,000
Gross Book Value Excess of 50 Million and Under 100 Millions
Related Party Transactions
Percentage of gross book value						0.20%
Gross book value						$ 50,000,000
Gross Book Value Excess of 50 Million and Under 100 Millions \| Maximum
Related Party Transactions
Gross book value						$ 100,000,000
Gross Book Value Excess of 100 Million
Related Party Transactions
Percentage of gross book value						0.1875%
Gross book value						$ 100,000,000