Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Revenues	$ 453,869	$ 407,144	$ 389,507
Operating costs and expenses
Cost of revenues, exclusive of depreciation and amortization shown below	196,957	200,650	175,809
Selling, general and administrative expenses	68,717	56,161	46,986
Depreciation and amortization	63,067	64,250	59,567
Total operating costs and expenses	328,741	321,061	282,362
Income from operations	125,128	86,083	107,145
Non-operating income (expenses)
Interest income	787	716	377
Interest expense	(30,044)	(29,861)	(24,617)
Earnings (losses) of equity method investment	692	604	(52)
Other income, net	2,602	2,657	544
Total non-operating expenses	(25,963)	(25,884)	(23,748)
Income before income taxes	99,165	60,199	83,397
Income tax expense	12,596	4,780	8,271
Net income	86,569	55,419	75,126
Less: Net income attributable to non-controlling interest	299	365	90
Net income attributable to EVERTEC, Inc.’s common stockholders	86,270	55,054	75,036
Other comprehensive (loss) income, net of tax of $345, $122 and $176
Foreign currency translation adjustments	(10,564)	(635)	(3,360)
(Loss) gain on cash flow hedges	(2,377)	2,178	(1,449)
Total comprehensive income attributable to EVERTEC, Inc.’s common stockholders	$ 73,329	$ 56,597	$ 70,227
Net income per common share - basic attributable to EVERTEC, Inc.’s common stockholders (in usd per share)	$ 1.19	$ 0.76	$ 1.01
Net income per common share - diluted attributable to EVERTEC, Inc.’s common stockholders (in usd per share)	1.16	0.76	1.01
Cash dividends declared per share (in usd per share)	$ 0.10	$ 0.30	$ 0.40