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v3.21.2

Contingencies (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Contingencies |  |
Assets guaranteed under contract | $ 63,776,000 | $ 22,773,000
Percentage of assets expected to be sold | 74.00% | 23.00%

X
- Definition Minimum level of proceeds guaranteed to consignors on the sale at auction of that consignor's equipment. + References No definition available. + Details
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Namespace Prefix: | rba_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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