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Condensed Consolidated Statements of Changes in Temporary Equity and Equity (Parentheticals)	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023
Condensed Consolidated Statements of Changes in Temporary Equity and Equity
Cumulative dividends (as percentage)	5.50%	5.50%

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- Definition

Percentage of cumulative dividends on temporary equity.

+ References

No definition available.

+ Details

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Namespace Prefix:	rba_
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Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration