Extinguished of related accrued liabilities recognized on the balance sheet at acquisition.

No definition available.

Name:	rba_BusinessCombinationExtinguishmentOfAccruedLiabilities
Namespace Prefix:	rba_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of integration cost incurred prior to acquisition.

+ References

No definition available.

+ Details

Name:	rba_IntegrationCostIncurredPriorToAcquisition
Namespace Prefix:	rba_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Operating Expenses

+ References

No definition available.

+ Details

Name:	rba_OperatingExpensesLineItems
Namespace Prefix:	rba_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount to settle a pre-existing contractual arrangement held prior to the acquisition for the benefit of the combined business.

+ References

No definition available.

+ Details

Name:	rba_PaymentsToAcquireBusinessesPreacquisitionContractualArrangement
Namespace Prefix:	rba_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479405/805-10-25-23

+ Details

Name:	us-gaap_BusinessCombinationAcquisitionRelatedCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_BusinessAcquisitionAxis=rba_RouseServicesLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementLocationAxis=rba_EmploymentCostsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=rba_SmartequipMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=rba_IaaIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Operating Expenses (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Rouse Services LLC \| Employment Costs
Operating Expenses [Line Items]
Acquisition-related costs	$ 1.7	$ 5.1	$ 10.3
SmartEquip \| Employment Costs
Operating Expenses [Line Items]
Acquisition-related costs	1.3	2.4	$ 0.4
IAA
Operating Expenses [Line Items]
Acquisition-related costs		$ 247.2
Settled a pre-existing contractual arrangement	20.0
Extinguished accrued liabilities recognized on the balance sheet at acquisition	3.7
Integration costs recognized	$ 16.3