Segment Information - Information about Operations by Business Segments (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2011
Segment Reporting Information [Line Items]
Revenues	$ 453,869	$ 407,144	$ 389,507
Equity interest in CONTADO acquisition				19.99%
Operating costs and expenses	328,741	321,061	282,362
Depreciation and amortization	63,067	64,250	59,567
Non-operating income (expenses)	3,294	3,261	492
EBITDA	191,489	153,594	167,204
Compensation and benefits	13,659	9,755	10,482
Transaction, refinancing, exit activity and other fees	7,311	14,679	9,989
Adjusted EBITDA	$ 212,459	$ 178,028	$ 187,675
Consorcio de Tarjetas Dominicanas S.A.
Segment Reporting Information [Line Items]
Equity interest in CONTADO acquisition	19.99%	19.99%	19.99%
Operating Segments | Payment Services - Puerto Rico & Caribbean
Segment Reporting Information [Line Items]
Revenues	$ 114,119	$ 101,687	$ 99,680
Operating costs and expenses	52,006	57,463	49,128
Depreciation and amortization	9,734	8,993	7,597
Non-operating income (expenses)	2,420	2,229	2,238
EBITDA	74,267	55,446	60,387
Compensation and benefits	1,087	589	637
Transaction, refinancing, exit activity and other fees	(250)	2,499	2,062
Adjusted EBITDA	75,104	58,534	63,086
Operating Segments | Payment Services - Latin America
Segment Reporting Information [Line Items]
Revenues	80,899	62,702	47,162
Operating costs and expenses	75,240	66,786	45,304
Depreciation and amortization	9,284	8,880	7,285
Non-operating income (expenses)	11,750	8,726	5,584
EBITDA	26,693	13,522	14,727
Compensation and benefits	1,034	816	627
Transaction, refinancing, exit activity and other fees	0	3,220	0
Adjusted EBITDA	27,727	17,558	15,354
Operating Segments | Merchant Acquiring, net
Segment Reporting Information [Line Items]
Revenues	99,655	85,778	91,248
Operating costs and expenses	55,778	57,574	52,771
Depreciation and amortization	1,698	2,254	2,672
Non-operating income (expenses)	3	1	0
EBITDA	45,578	30,459	41,149
Compensation and benefits	938	573	480
Transaction, refinancing, exit activity and other fees	0	6,465	0
Adjusted EBITDA	46,516	37,497	41,629
Operating Segments | Business Solutions
Segment Reporting Information [Line Items]
Revenues	197,602	189,077	184,276
Operating costs and expenses	126,232	119,761	113,082
Depreciation and amortization	13,878	15,774	13,783
Non-operating income (expenses)	477	13	24
EBITDA	85,725	85,103	85,001
Compensation and benefits	2,088	1,687	1,961
Transaction, refinancing, exit activity and other fees	0	0	2,277
Adjusted EBITDA	87,813	86,790	89,239
Corporate and Other
Segment Reporting Information [Line Items]
Revenues	(38,406)	(32,100)	(32,859)
Operating costs and expenses	19,485	19,477	22,077
Depreciation and amortization	28,473	28,349	28,230
Non-operating income (expenses)	(11,356)	(7,708)	(7,354)
EBITDA	(40,774)	(30,936)	(34,060)
Compensation and benefits	8,512	6,090	6,777
Transaction, refinancing, exit activity and other fees	7,561	2,495	5,650
Adjusted EBITDA	(24,701)	$ (22,351)	$ (21,633)
Processing Fee | Corporate and Other
Segment Reporting Information [Line Items]
Revenues	(36,100)
Software Sale and Developments | Corporate and Other
Segment Reporting Information [Line Items]
Revenues	$ 2,300