Segment Information - Selected Financial Data, Revenues and Long lived Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 323,080	$ 285,186
Long-lived Assets
Long-lived assets	2,149,475		$ 2,170,529
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	199,315	191,977
Long-lived Assets
Long-lived assets	1,401,232		1,425,391
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	123,765	93,209
Long-lived Assets
Long-lived assets	748,243		$ 745,138
Bill Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	149,880	150,599
Digital Business Banking
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	13,488	15,092
Merchant Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	41,002	38,670
Fraud Management
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	7,777	6,224
Real-Time Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	21,927	13,185
Issuing and Acquiring
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	89,006	61,416
License
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	60,285	21,202
Maintenance
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	51,418	52,363
Operating Segments | Banks
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	132,198	95,917
Operating Segments | Banks | Bill Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
Operating Segments | Banks | Digital Business Banking
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	13,488	15,092
Operating Segments | Banks | Merchant Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
Operating Segments | Banks | Fraud Management
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	7,777	6,224
Operating Segments | Banks | Real-Time Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	21,927	13,185
Operating Segments | Banks | Issuing and Acquiring
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	89,006	61,416
Operating Segments | Banks | Software as a service and platform as a service
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	13,952	14,278
Operating Segments | Banks | License
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	54,439	18,018
Operating Segments | Banks | Maintenance
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	47,343	48,031
Operating Segments | Banks | Services
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	16,464	15,590
Operating Segments | Merchants
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	41,002	38,670
Operating Segments | Merchants | Bill Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
Operating Segments | Merchants | Digital Business Banking
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
Operating Segments | Merchants | Merchant Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	41,002	38,670
Operating Segments | Merchants | Fraud Management
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
Operating Segments | Merchants | Real-Time Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
Operating Segments | Merchants | Issuing and Acquiring
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
Operating Segments | Merchants | Software as a service and platform as a service
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	30,767	31,043
Operating Segments | Merchants | License
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	5,846	3,090
Operating Segments | Merchants | Maintenance
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	4,038	4,252
Operating Segments | Merchants | Services
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	351	285
Operating Segments | Billers
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	149,880	150,599
Operating Segments | Billers | Bill Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	149,880	150,599
Operating Segments | Billers | Digital Business Banking
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
Operating Segments | Billers | Merchant Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
Operating Segments | Billers | Fraud Management
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
Operating Segments | Billers | Real-Time Payments
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
Operating Segments | Billers | Issuing and Acquiring
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	0
Operating Segments | Billers | Software as a service and platform as a service
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	149,843	150,425
Operating Segments | Billers | License
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	0	94
Operating Segments | Billers | Maintenance
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	37	80
Operating Segments | Billers | Services
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 0	$ 0