The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Earnings Per Share / Unit (EPS / EPU) - Additional Information (Details) - shares	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Service Awards/Service Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Service Awards / Performance Awards	143,080	147,937
Service Awards/Service Units \| Management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Service Awards / Performance Awards	143,080	147,937	211,920
First Industrial, L.P.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Service Awards / Performance Awards	336,030	378,548	444,407