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Significant Accounting Policies - Summary of Sales Return Reserve (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Accounting Policies [Abstract]
Beginning balance	$ 44,024	$ 28,336	$ 25,602	$ 35,104
Returns	(254,974)	(124,142)	(602,232)	(383,316)
Provisions	261,792	119,167	627,472	371,573
Ending balance	$ 50,842	$ 23,361	$ 50,842	$ 23,361

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- Definition

Contract with customer liability sales return reserves provision.

+ References

No definition available.

+ Details

Name:	rvlv_ContractWithCustomerLiabilitySalesReturnReservesProvision
Namespace Prefix:	rvlv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- Definition

Contract with customer liability sales return reserves sales return.

+ References

No definition available.

+ Details

Name:	rvlv_ContractWithCustomerLiabilitySalesReturnReservesSalesReturn
Namespace Prefix:	rvlv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- References

No definition available.

+ Details

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

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- Definition

Current regulatory liabilities generally represent obligations to make refunds to customers for various reasons including overpayment.

+ References

No definition available.

+ Details

Name:	us-gaap_CustomerRefundLiabilityCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant