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v3.24.1

Carrying value of property owned by the Company which is leased or held for lease to others (Details) $ in Thousands | Dec. 31, 2023 USD ($)
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Leases [Abstract] |
Construction aggregates property | $ 46,817
Commercial property | 103,293
Residential/mixed-use property | 294,975
Carrying Value of property owned by the Company leased or held for lease, gross | 445,085
Less accumulated depreciation and depletion | 67,266
Carrying Value of property owned by the Company leased or held for lease, net | $ 377,819

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- Definition Accumulated Depreciation and Depletion of leased real estate + References No definition available. + Details
Name: | FRPH_AccumulatedDepreciationDepletionRealEstateLeased
Namespace Prefix: | FRPH_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Commercial Property + References No definition available. + Details
Name: | FRPH_CommercialProperty
Namespace Prefix: | FRPH_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | FRPH_ConstructionAggregatesProperty
Namespace Prefix: | FRPH_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | FRPH_RealEstateLeasedCarryingValueGross
Namespace Prefix: | FRPH_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | FRPH_RealEstateLeasedCarryingValueNet
Namespace Prefix: | FRPH_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | FRPH_ResidentialMixedUseProperty
Namespace Prefix: | FRPH_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration