Segment Information - Schedule of Reportable Segments and Reconciliation to Income (Loss) Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Segment Reporting [Line Items]
Revenues	$ 268,623	$ 241,439	$ 780,437	$ 705,881
Cost of revenue (excludes depreciation and amortization)	(165,908)	(146,681)	(479,053)	(431,433)
Segment Adjusted EBITDA	84,637	77,858	246,012	226,599
Merchant Solutions
Segment Reporting [Line Items]
Revenues	177,691	161,307	511,977	475,336
Other operating expenses	(10,442)	(8,406)	(30,367)	(24,987)
Other segment items	1,745	671	3,785	2,172
Segment Adjusted EBITDA	32,627	27,727	91,254	81,181
Payables
Segment Reporting [Line Items]
Revenues	31,257	24,698	93,343	73,054
Other operating expenses	(3,578)	(3,874)	(10,854)	(11,408)
Other segment items	376	154	469	399
Segment Adjusted EBITDA	3,925	3,455	12,489	10,741
Treasury Solutions
Segment Reporting [Line Items]
Revenues	59,675	55,434	175,117	157,491
Other operating expenses	(6,487)	(5,764)	(19,259)	(14,831)
Other segment items	86	315	611	797
Segment Adjusted EBITDA	48,085	46,676	142,269	134,677
Eliminations
Segment Reporting [Line Items]
Revenues	(2,915)	(1,281)	(10,895)	(3,456)
Cost of revenue (excludes depreciation and amortization)	(2,693)	(1,277)	(10,652)	(3,447)
Eliminations \| Merchant Solutions
Segment Reporting [Line Items]
Revenues	(1,954)	(567)	(5,232)	(1,458)
Eliminations \| Payables
Segment Reporting [Line Items]
Revenues	(369)	(464)	(1,154)	(1,059)
Eliminations \| Treasury Solutions
Segment Reporting [Line Items]
Revenues	(592)	(250)	(4,509)	(939)
Operating Segments
Segment Reporting [Line Items]
Revenues	271,538	242,720	791,332	709,337
Operating Segments \| Merchant Solutions
Segment Reporting [Line Items]
Revenues	179,645	161,874	517,209	476,794
Cost of revenue (excludes depreciation and amortization)	(138,321)	(126,412)	(399,373)	(372,798)
Operating Segments \| Payables
Segment Reporting [Line Items]
Revenues	31,626	25,162	94,497	74,113
Cost of revenue (excludes depreciation and amortization)	(24,499)	(17,987)	(71,623)	(52,363)
Operating Segments \| Treasury Solutions
Segment Reporting [Line Items]
Revenues	60,267	55,684	179,626	158,430
Cost of revenue (excludes depreciation and amortization)	$ (5,781)	$ (3,559)	$ (18,709)	$ (9,719)