Segment Information - Operations by Segments (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) segment	Jun. 30, 2020 USD ($)
Segment Reporting Information [Line Items]
Number of operating business segments (in segment) | segment			4
Revenues	$ 149,148	$ 117,937	$ 288,676	$ 239,879
Operating costs and expenses	94,856	92,347	189,385	181,526
Depreciation and amortization	18,723	17,839	37,346	35,634
Non-operating income (expenses)	2,639	365	3,469	811
EBITDA	75,654	43,794	140,106	94,798
Compensation and benefits	4,283	3,751	7,787	7,251
Transaction, refinancing and other fees	324	2,656	1,257	4,442
Adjusted EBITDA	$ 80,261	$ 50,201	$ 149,150	$ 106,491
Consorcio de Tarjetas Dominicanas S.A.
Segment Reporting Information [Line Items]
Equity investment	19.99%	19.99%	19.99%	19.99%
Payment Services - Puerto Rico & Caribbean
Segment Reporting Information [Line Items]
Revenues	$ 26,159	$ 19,585	$ 51,019	$ 40,223
Payment Services - Latin America
Segment Reporting Information [Line Items]
Revenues	23,999	18,093	47,296	38,333
Merchant Acquiring, net
Segment Reporting Information [Line Items]
Revenues	38,335	24,765	69,202	49,886
Business Solutions
Segment Reporting Information [Line Items]
Revenues	60,655	55,494	121,159	111,437
Operating Segments | Payment Services - Puerto Rico & Caribbean
Segment Reporting Information [Line Items]
Revenues	38,589	27,461	74,853	57,348
Operating costs and expenses	19,361	17,453	39,850	34,859
Depreciation and amortization	3,882	3,193	7,824	6,442
Non-operating income (expenses)	230	(178)	415	(65)
EBITDA	23,340	13,023	43,242	28,866
Compensation and benefits	280	253	521	484
Transaction, refinancing and other fees	0	0	660	0
Adjusted EBITDA	23,620	13,276	44,423	29,350
Operating Segments | Payment Services - Latin America
Segment Reporting Information [Line Items]
Revenues	25,835	19,797	50,849	41,437
Operating costs and expenses	20,965	17,947	40,811	35,598
Depreciation and amortization	2,952	2,815	5,886	5,572
Non-operating income (expenses)	2,396	584	3,504	1,338
EBITDA	10,218	5,249	19,428	12,749
Compensation and benefits	757	835	1,566	1,577
Transaction, refinancing and other fees	0	0	0	0
Adjusted EBITDA	10,975	6,084	20,994	14,326
Operating Segments | Merchant Acquiring, net
Segment Reporting Information [Line Items]
Revenues	38,335	24,764	69,202	49,885
Operating costs and expenses	19,374	12,230	35,840	26,936
Depreciation and amortization	967	455	1,621	954
Non-operating income (expenses)	323	158	554	312
EBITDA	20,251	13,147	35,537	24,215
Compensation and benefits	295	235	526	451
Transaction, refinancing and other fees	0	0	0	0
Adjusted EBITDA	20,546	13,382	36,063	24,666
Operating Segments | Business Solutions
Segment Reporting Information [Line Items]
Revenues	60,693	55,495	121,304	111,438
Operating costs and expenses	36,175	37,008	72,864	70,625
Depreciation and amortization	4,600	4,381	9,394	8,677
Non-operating income (expenses)	1,390	684	1,943	1,071
EBITDA	30,508	23,552	59,777	50,561
Compensation and benefits	760	472	1,123	908
Transaction, refinancing and other fees	(647)	0	(647)	0
Adjusted EBITDA	30,621	24,024	60,253	51,469
Corporate and Other
Segment Reporting Information [Line Items]
Revenues	(14,304)	(9,580)	(27,532)	(20,229)
Operating costs and expenses	(1,019)	7,709	20	13,508
Depreciation and amortization	6,322	6,995	12,621	13,989
Non-operating income (expenses)	(1,700)	(883)	(2,947)	(1,845)
EBITDA	(8,663)	(11,177)	(17,878)	(21,593)
Compensation and benefits	2,191	1,956	4,051	3,831
Transaction, refinancing and other fees	971	2,656	1,244	4,442
Adjusted EBITDA	(5,501)	(6,565)	(12,583)	(13,320)
Payment Processing | Corporate and Other
Segment Reporting Information [Line Items]
Revenues	10,700	7,300	20,400	16,300
Software Sale and Developments | Corporate and Other
Segment Reporting Information [Line Items]
Revenues	1,900	$ 2,300	4,200	$ 3,900
Transaction Processing and Monitoring Fees | Corporate and Other
Segment Reporting Information [Line Items]
Revenues	$ 1,700		$ 2,900