| Document and Entity Information | Feb. 21, 2024 |
| Document Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Feb. 21, 2024 |
| Entity File Number | 001-13425 |
| Entity Registrant Name | RB Global, Inc. |
| Entity Incorporation, State or Country Code | Z4 |
| Entity Tax Identification Number | 98-0626225 |
| Entity Address, Address Line One | Two Westbrook Corporate Center |
| Entity Address, Address Line Two | Suite 500 |
| Entity Address, City or Town | Westchester |
| Entity Address, State or Province | IL |
| Entity Address, Postal Zip Code | 60154 |
| City Area Code | 708 |
| Local Phone Number | 492-7000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001046102 |
| Amendment Flag | false |
| Common Stock | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Common shares |
| Trading Symbol | RBA |
| Security Exchange Name | NYSE |
| Common Share Purchase Rights | |
| Document Information [Line Items] | |
| Title of 12(b) Security | Common Share Purchase Rights |
| Security Exchange Name | NYSE |
| No Trading Symbol Flag | true |
