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Significant Accounting Policies - Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($) segment	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Number of operating segments | segment			1
Number of reportable segments | segment			1
Deferred revenue	$ 1,893		$ 1,893		$ 1,573
Seller payable	19,463		19,463		18,264
Seller payable, liability, current, revenue recognized	9,800	$ 7,400	17,900	$ 13,500
Loyalty Program
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Revenue recognized	0	0	0	1,500
Loyalty Program | Transferred over Time
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Deferred revenue	0		0		0
Gift Card
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Deferred revenue	3,200		3,200		3,900
Revenue recognized			$ 0	0
Conversion period			1 year
Gift Card Breakage
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Revenue recognized	1,100	1,700	$ 2,400	3,900
Site Credit
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items]
Deferred revenue	4,300		$ 4,300		$ 4,100
Conversion period			1 year
Revenue recognized from the redemption	$ 11,400	$ 12,900	$ 22,700	$ 23,900

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