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Total Revenue - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Disaggregation of Revenue [Line Items]
Revenues	$ 116,796	$ 69,958	$ 320,410	$ 172,905
Deferred income	2,300		2,300		$ 3,800
Outstanding performance obligation, amount	4,600		4,600		$ 4,200
Revenue recognized out of deferred revenue			4,100	2,600
Merchant And Partner Income
Disaggregation of Revenue [Line Items]
Revenues	26,000	21,900	73,300	59,900
Consumer Fees
Disaggregation of Revenue [Line Items]
Revenues	33,500	14,500	96,000	32,100
Late Payment Fees
Disaggregation of Revenue [Line Items]
Revenues	$ 21,000	$ 6,800	$ 53,400	$ 13,500

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