Unaudited Consolidated Condensed Statements of Income and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Revenues	$ 113,347	$ 103,511	$ 223,621	$ 204,791
Operating costs and expenses
Cost of revenues, exclusive of depreciation and amortization shown below	49,131	43,030	96,551	87,203
Selling, general and administrative expenses	17,848	14,588	31,280	25,419
Depreciation and amortization	15,728	15,899	31,595	31,583
Total operating costs and expenses	82,707	73,517	159,426	144,205
Income from operations	30,640	29,994	64,195	60,586
Non-operating income (expenses)
Interest income	164	216	321	401
Interest expense	(7,665)	(7,406)	(15,344)	(14,442)
Earnings of equity method investment	175	115	374	258
Other (expense) income	(69)	1,363	748	2,637
Total non-operating expenses	(7,395)	(5,712)	(13,901)	(11,146)
Income before income taxes	23,245	24,282	50,294	49,440
Income tax expense	3,112	4,068	7,047	6,088
Net income	20,133	20,214	43,247	43,352
Less: Net income attributable to non-controlling interest	81	125	173	234
Net income attributable to EVERTEC, Inc.’s common stockholders	20,052	20,089	43,074	43,118
Other comprehensive income (loss), net of tax of $28, $(18), $168 and $19
Foreign currency translation adjustments	(4,307)	(1,956)	(1,900)	(2,601)
Gain (loss) on cash flow hedge	387	(242)	1,890	376
Total comprehensive income attributable to EVERTEC, Inc.’s common stockholders	$ 16,132	$ 17,891	$ 43,064	$ 40,893
Net income per common share - basic attributable to EVERTEC, Inc.’s common stockholders (in usd per share)	$ 0.28	$ 0.28	$ 0.59	$ 0.59
Net income per common share - diluted attributable to EVERTEC, Inc.’s common stockholders (in usd per share)	0.27	0.27	0.58	0.59
Cash dividends declared per share (in usd per share)	$ 0	$ 0.10	$ 0	$ 0.20