Cover Page
Jul. 07, 2020
Entity Information [Line Items]  
Document Type 8-K
Document Period End Date Jul. 07, 2020
Entity Registrant Name FIRST INDUSTRIAL REALTY TRUST, INC.
Entity Central Index Key 0000921825
Amendment Flag false
Entity Incorporation, State or Country Code MD
Entity File Number 1-13102
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
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock
Trading Symbol FR
Security Exchange Name NYSE
Entity Emerging Growth Company false
First Industrial, L.P.  
Entity Information [Line Items]  
Document Type 8-K
Document Period End Date Jul. 07, 2020
Entity Registrant Name FIRST INDUSTRIAL, L.P.
Entity Central Index Key 0001033128
Amendment Flag false
Entity Incorporation, State or Country Code DE
Entity File Number 333-21873
Entity Tax Identification Number 36-3924586
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
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false