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Document and Entity Information - USD ($) $ in Millions	12 Months Ended
Document and Entity Information - USD ($) $ in Millions	Dec. 31, 2023	Feb. 14, 2024	Jun. 30, 2023
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Document Transition Report	false
Entity File Number	1-13102
Entity Registrant Name	FIRST INDUSTRIAL REALTY TRUST, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	36-3935116
Entity Address, Address Line One	One North Wacker Drive, Suite 4200
Entity Address, City or Town	Chicago
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60606
City Area Code	312
Local Phone Number	344-4300
Title of 12(b) Security	Common Stock, par value $.01 per share
Trading Symbol	FR
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Entity Central Index Key	0000921825
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 6,932.8
Entity Common Stock, Shares Outstanding		132,340,269
Documents Incorporated by Reference	Part III incorporates certain information by reference to First Industrial Realty Trust, Inc.'s definitive proxy statement expected to be filed with the Securities and Exchange Commission no later than 120 days after the end of First Industrial Realty Trust, Inc.'s fiscal year.
First Industrial, L.P.
Entity Information [Line Items]
Document Type	10-K
Document Period End Date	Dec. 31, 2023
Entity File Number	333-21873
Entity Registrant Name	FIRST INDUSTRIAL, L.P.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-3924586
Trading Symbol	FRFI
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Entity Central Index Key	0001033128
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false