| Document and Entity Information | Mar. 26, 2024 |
| Document And Entity Information [Line Items] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001571283 |
| Document Type | 8-K |
| Document Period End Date | Mar. 26, 2024 |
| Entity Registrant Name | REXFORD INDUSTRIAL REALTY, INC. |
| Entity Incorporation State Country Code | MD |
| Entity File Number | 001-36008 |
| Entity Tax Identification Number | 46-2024407 |
| Entity Address, Address Line One | 11620 Wilshire Boulevard |
| Entity Address, Address Line Two | 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 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Common Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Common Stock, $0.01 par value |
| Trading Symbol | REXR |
| Security Exchange Name | NYSE |
| Series B Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 5.875% Series B Cumulative Redeemable Preferred Stock |
| Trading Symbol | REXR-PB |
| Security Exchange Name | NYSE |
| Series C Preferred Stock [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | 5.625% Series C Cumulative Redeemable Preferred Stock |
| Trading Symbol | REXR-PC |
| Security Exchange Name | NYSE |
