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.

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+ Details

Earnings Per Share / Unit (EPS / EPU) - Additional Information (Details) - shares	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Service Awards/Service Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Service Awards / Performance Awards	102,106	120,525
Service Awards/Service Units \| Management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Service Awards / Performance Awards	68,829	92,663	100,795
First Industrial, L.P.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Service Awards / Performance Awards	189,217	259,957	253,955