Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Revenues	$ 487,374	$ 453,869	$ 407,144
Operating costs and expenses
Cost of revenues, exclusive of depreciation and amortization shown below	213,379	196,957	200,650
Selling, general and administrative expenses	61,411	68,717	56,161
Depreciation and amortization	68,082	63,067	64,250
Total operating costs and expenses	342,872	328,741	321,061
Income from operations	144,502	125,128	86,083
Non-operating income (expenses)
Interest income	1,217	787	716
Interest expense	(28,811)	(30,044)	(29,861)
Earnings of equity method investment	936	692	604
Other (expenses) income	(1,169)	2,602	2,657
Total non-operating expenses	(27,827)	(25,963)	(25,884)
Income before income taxes	116,675	99,165	60,199
Income tax expense	12,975	12,596	4,780
Net income	103,700	86,569	55,419
Less: Net income attributable to non-controlling interest	231	299	365
Net income attributable to EVERTEC, Inc.’s common stockholders	103,469	86,270	55,054
Other comprehensive (loss) income, net of tax of $1,070, $345 and $122
Foreign currency translation adjustments	4,754	(10,564)	(635)
(Loss) gain on cash flow hedges	(10,974)
(Loss) gain on cash flow hedges		(2,377)	2,178
Total comprehensive income attributable to EVERTEC, Inc.’s common stockholders	$ 97,249	$ 73,329	$ 56,597
Net income per common share - basic attributable to EVERTEC, Inc.’s common stockholders (in dollar per share)	$ 1.44	$ 1.19	$ 0.76
Net income per common share - diluted attributable to EVERTEC, Inc.’s common stockholders (in dollar per share)	$ 1.41	$ 1.16	$ 0.76