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Revenue - Summary of Primary Components of Revenue, Level of Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Marketplace and service
Disaggregation Of Revenue [Line Items]
Revenue	$ 176,510	$ 155,908	$ 518,442	$ 429,848
Auction marketplace revenue
Disaggregation Of Revenue [Line Items]
Revenue	87,753	84,894	270,004	227,656
Other marketplace revenue
Disaggregation Of Revenue [Line Items]
Revenue	80,290	62,748	223,363	177,671
Data services revenue
Disaggregation Of Revenue [Line Items]
Revenue	$ 8,467	$ 8,266	$ 25,075	$ 24,521

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