Revenue - Summary of Disaggregation of Revenue from Contracts with Customer (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation Of Revenue [Line Items]
Revenue	$ 119,969	$ 93,495	$ 236,673	$ 185,717
Customer Contracts [Member]
Disaggregation Of Revenue [Line Items]
Revenue	119,969	93,495	236,673	185,717
Payment Transaction Processing Revenue [Member] | Customer Contracts [Member]
Disaggregation Of Revenue [Line Items]
Revenue	118,512	92,446	233,474	183,646
Other [Member] | Customer Contracts [Member]
Disaggregation Of Revenue [Line Items]
Revenue	$ 1,457	$ 1,049	$ 3,199	$ 2,071