Condensed Consolidated Statements of Changes in Temporary Equity and Equity (Parentheticals)	3 Months Ended
Mar. 31, 2023
Condensed Consolidated Statements of Changes in Temporary Equity and Equity
Cumulative dividends (as percentage)	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