Certain Balance Sheet Components - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accrued costs of revenue	$ 73,645	$ 57,191
Accrued compensation and benefits	42,095	41,268
Deferred revenue	11,829	17,048
Due to Issuing Banks	7,892	0
Accrued tax liabilities	4,929	4,978
Accrued professional services	4,559	4,784
Operating lease liabilities, current portion	3,908	3,394
Reserve for contract contingencies and processing errors	3,754	2,494
Other accrued liabilities	8,903	5,730
Accrued expenses and other current liabilities	$ 161,514	$ 136,887
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other current liabilities	Accrued expenses and other current liabilities