v3.25.4
Related Party Transactions - Additional Information (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Related Party Transactions [Abstract]
Receivable Due From Affiliates
$ 9,156
$ 9,225
X
- Definition
Receivable Due From Affiliates
+ References
No definition available.
+ Details
Name:
fr_ReceivableDueFromAffiliates
Namespace Prefix:
fr_
Data Type:
xbrli:monetaryItemType
Balance Type:
debit
Period Type:
instant
X
- References
No definition available.
+ Details
Name:
us-gaap_RelatedPartyTransactionsAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration