Segment Information - Operations by Segments (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) segment	Sep. 30, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of operating business segments (in segment) | segment			4
Revenues	$ 136,507	$ 118,804	$ 376,386	$ 360,188
Operating costs and expenses	92,663	84,002	274,189	250,293
Depreciation and amortization	18,127	16,972	53,761	50,440
Non-operating income (expenses)	2,688	623	3,499	107
EBITDA	64,659	52,397	159,457	160,442
Compensation and benefits	3,669	3,455	10,920	10,392
Transaction, refinancing and other fees	1,705	(372)	6,147	39
Adjusted EBITDA	$ 70,033	$ 55,480	$ 176,524	$ 170,873
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	$ 23,695	$ 20,342	$ 63,918	$ 63,792
Payment Services - Latin America
Segment Reporting Information [Line Items]
Revenues	19,148	19,081	57,481	57,701
Merchant Acquiring, net
Segment Reporting Information [Line Items]
Revenues	30,646	26,436	80,532	79,203
Business Solutions
Segment Reporting Information [Line Items]
Revenues	63,018	52,945	174,455	159,492
Operating Segments | Payment Services - Puerto Rico & Caribbean
Segment Reporting Information [Line Items]
Revenues	33,284	30,411	90,632	92,910
Operating costs and expenses	19,045	15,821	53,904	43,666
Depreciation and amortization	3,349	3,093	9,791	8,476
Non-operating income (expenses)	127	410	62	1,461
EBITDA	17,715	18,093	46,581	59,181
Compensation and benefits	258	284	742	778
Transaction, refinancing and other fees	500	0	500	0
Adjusted EBITDA	18,473	18,377	47,823	59,959
Operating Segments | Payment Services - Latin America
Segment Reporting Information [Line Items]
Revenues	21,241	20,596	62,678	62,533
Operating costs and expenses	18,284	11,943	53,882	47,170
Depreciation and amortization	2,936	2,650	8,508	7,393
Non-operating income (expenses)	2,959	(3,824)	4,297	411
EBITDA	8,852	7,479	21,601	23,167
Compensation and benefits	686	109	2,263	448
Transaction, refinancing and other fees	0	0	0	2
Adjusted EBITDA	9,538	7,588	23,864	23,617
Operating Segments | Merchant Acquiring, net
Segment Reporting Information [Line Items]
Revenues	30,646	26,436	80,531	79,203
Operating costs and expenses	15,643	15,978	42,579	45,926
Depreciation and amortization	477	457	1,431	1,348
Non-operating income (expenses)	161	8	473	39
EBITDA	15,641	10,923	39,856	34,664
Compensation and benefits	244	285	695	760
Transaction, refinancing and other fees	0	0	0	0
Adjusted EBITDA	15,885	11,208	40,551	35,424
Operating Segments | Business Solutions
Segment Reporting Information [Line Items]
Revenues	63,018	52,945	174,455	159,492
Operating costs and expenses	35,276	32,259	105,901	101,128
Depreciation and amortization	4,372	3,780	13,049	12,113
Non-operating income (expenses)	411	67	1,482	287
EBITDA	32,524	24,533	83,085	70,764
Compensation and benefits	466	549	1,374	1,632
Transaction, refinancing and other fees	0	0	0	0
Adjusted EBITDA	32,990	25,082	84,459	72,396
Corporate and Other
Segment Reporting Information [Line Items]
Revenues	(11,682)	(11,584)	(31,910)	(33,950)
Operating costs and expenses	4,415	8,001	17,923	12,403
Depreciation and amortization	6,993	6,992	20,982	21,110
Non-operating income (expenses)	(970)	3,962	(2,815)	(2,091)
EBITDA	(10,073)	(8,631)	(31,666)	(27,334)
Compensation and benefits	2,015	2,228	5,846	6,774
Transaction, refinancing and other fees	1,205	(372)	5,647	37
Adjusted EBITDA	(6,853)	(6,775)	(20,173)	(20,523)
Payment Processing | Corporate and Other
Segment Reporting Information [Line Items]
Revenues	9,100	10,000	25,400	29,000
Payment Processing | Corporate and Other | Payment Services - Latin America
Segment Reporting Information [Line Items]
Revenues	4,300	5,200	13,700	15,600
Software Sale And Developments | Corporate and Other
Segment Reporting Information [Line Items]
Revenues	$ 2,600	$ 1,600	$ 6,500	$ 4,900