Business Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total revenues	$ 3,358,741	$ 2,995,443	$ 2,482,700
Operating expenses:
Direct operating costs	2,018,127	1,900,267	1,576,699
Acquired contract cost impairment		38,634
Salaries and benefits	534,238	484,839	404,142
Selling, general and administrative	285,173	251,933	221,614
Goodwill and acquired intangible assets impairment			106,602
Depreciation and amortization	135,864	135,754	127,021
Total operating expenses	2,973,402	2,811,427	2,436,078
Operating income	385,339	184,016	46,622
Other income (expense)
Interest income	2,066	664	1,040
Interest expense	(37,585)	(38,198)	(36,604)
Foreign currency exchange loss, net	(28,175)	(10,866)	(3,756)
Other gains, net	950	59	869
Other expense, net	(62,744)	(48,341)	(38,451)
Income before income taxes	322,595	135,675	8,171
Total Assets	5,403,633	4,744,276	4,926,711
EFT Processing [Member]
Segment Reporting Information [Line Items]
Total revenues	924,208	591,138	468,726
Operating expenses:
Direct operating costs	475,785	354,254	302,637
Acquired contract cost impairment
Salaries and benefits	111,997	98,584	91,526
Selling, general and administrative	57,049	47,832	35,388
Goodwill and acquired intangible assets impairment			21,861
Depreciation and amortization	95,486	90,969	84,025
Total operating expenses	740,317	591,639	535,437
Operating income	183,891	(501)	(66,711)
Other income (expense)
Total Assets	2,150,685	1,682,680	1,541,610
epay [Member]
Segment Reporting Information [Line Items]
Total revenues	998,009	1,011,482	835,517
Operating expenses:
Direct operating costs	753,149	760,891	630,391
Acquired contract cost impairment
Salaries and benefits	81,680	79,451	64,769
Selling, general and administrative	36,006	39,602	35,789
Goodwill and acquired intangible assets impairment
Depreciation and amortization	6,224	8,501	7,890
Total operating expenses	877,059	888,445	738,839
Operating income	120,950	123,037	96,678
Other income (expense)
Total Assets	1,173,330	1,234,074	1,135,204
Money Transfer Segment [Member]
Segment Reporting Information [Line Items]
Total revenues	1,444,304	1,400,957	1,183,849
Operating expenses:
Direct operating costs	796,951	793,218	649,033
Acquired contract cost impairment		38,634
Salaries and benefits	277,012	255,816	213,511
Selling, general and administrative	182,360	157,955	142,161
Goodwill and acquired intangible assets impairment			84,741
Depreciation and amortization	33,727	35,739	34,694
Total operating expenses	1,290,050	1,281,362	1,124,140
Operating income	154,254	119,595	59,709
Other income (expense)
Total Assets	1,795,799	1,621,726	1,755,651
Corporate Services, Eliminations and Other [Member]
Segment Reporting Information [Line Items]
Total revenues	(7,780)	(8,134)	(5,392)
Operating expenses:
Direct operating costs	(7,758)	(8,096)	(5,362)
Acquired contract cost impairment
Salaries and benefits	63,549	50,988	34,336
Selling, general and administrative	9,758	6,544	8,276
Goodwill and acquired intangible assets impairment
Depreciation and amortization	427	545	412
Total operating expenses	65,976	49,981	37,662
Operating income	(73,756)	(58,115)	(43,054)
Other income (expense)
Total Assets	$ 283,819	$ 205,796	$ 494,246