Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Jul. 20, 2020
Entity Listings [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Amendment Flag	false
Document Period End Date	Jun. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001571283
Current Fiscal Year End Date	--12-31
Entity File Number	001-36008
Entity Registrant Name	Rexford Industrial Realty, Inc.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	46-2024407
Entity Address, Address Line One	11620 Wilshire Boulevard, Suite 1000
Entity Address, City or Town	Los Angeles
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90025
City Area Code	310
Local Phone Number	966-1680
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		123,789,199
Common Stock
Entity Listings [Line Items]
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	REXR
Security Exchange Name	NYSE
5.875% Series A Cumulative Redeemable Preferred Stock
Entity Listings [Line Items]
Title of 12(b) Security	5.875% Series A Cumulative Redeemable Preferred Stock
Trading Symbol	REXR-PA
Security Exchange Name	NYSE
5.875% Series B Cumulative Redeemable Preferred Stock
Entity Listings [Line Items]
Title of 12(b) Security	5.875% Series B Cumulative Redeemable Preferred Stock
Trading Symbol	REXR-PB
Security Exchange Name	NYSE
5.625% Series C Cumulative Redeemable Preferred Stock
Entity Listings [Line Items]
Title of 12(b) Security	5.625% Series C Cumulative Redeemable Preferred Stock
Trading Symbol	REXR-PC
Security Exchange Name	NYSE