XML 90 R78.htm IDEA: XBRL DOCUMENT
v3.25.3

Earnings Per Share - Additional Information (Details) | 9 Months Ended
--- | ---
Sep. 30, 2025
Common Class B |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |
Per share distributions for Class A common shareholders (as percent) | 0.03%

X
- Definition Common Class A Stockholders, Share Ownership Distribution, Percentage + References No definition available. + Details
Name: | fph_CommonClassAStockholdersShareOwnershipDistributionPercentage
Namespace Prefix: | fph_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |