Condensed Consolidated Statements of Changes in Temporary Equity and Equity (Parentheticals)	3 Months Ended	9 Months Ended
Sep. 30, 2023	Sep. 30, 2023
Statement of Stockholders' Equity [Abstract]
Cumulative dividends	5.50%	5.50%

Percentage of cumulative dividends on temporary equity.

No definition available.

Name:	rba_TemporaryEquityPercentageOfCumulativeDividends
Namespace Prefix:	rba_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration