Summary of Significant Accounting Policies - Schedule of Settlement and Merchant Reserve Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023
Settlement And Merchant Reserve Assets And Liabilities [Abstract]
Settlement assets	$ 216,485	$ 260,712
Merchant reserve assets	15,569	13,987
Total	232,054	274,699	$ 176,397
Settlement liabilities	214,067	259,825
Merchant reserve liabilities	15,569	13,992
Total	$ 229,636	$ 273,817