Unaudited Condensed Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Revenues (affiliates Note 14)	$ 136,507	$ 118,804	$ 376,386	$ 360,188
Operating costs and expenses
Cost of revenues, exclusive of depreciation and amortization	57,854	51,878	168,900	154,498
Selling, general and administrative expenses	16,682	15,152	51,528	45,355
Depreciation and amortization	18,127	16,972	53,761	50,440
Total operating costs and expenses	92,663	84,002	274,189	250,293
Income from operations	43,844	34,802	102,197	109,895
Non-operating (expenses) income
Interest income	429	348	1,165	864
Interest expense	(5,867)	(7,267)	(18,829)	(22,191)
Earnings of equity method investment	202	371	733	726
Other income (expense)	2,486	252	2,766	(619)
Total non-operating expenses	(2,750)	(6,296)	(14,165)	(21,220)
Income before income taxes	41,094	28,506	88,032	88,675
Income tax expense	6,513	3,720	15,551	10,018
Net income	34,581	24,786	72,481	78,657
Less: Net income attributable to non-controlling interest	118	32	323	201
Net income attributable to EVERTEC, Inc.’s common stockholders	34,463	24,754	72,158	78,456
Other comprehensive income (loss), net of tax of $123, $(278), $(964) and $(1,279)
Foreign currency translation adjustments	(3,245)	(576)	(10,483)	3,714
Gain (loss) on cash flow hedges	643	(2,922)	(11,894)	(13,019)
Total comprehensive income attributable to EVERTEC, Inc.’s common stockholders	$ 31,861	$ 21,256	$ 49,781	$ 69,151
Net income per common share - basic attributable to EVERTEC, Inc.’s common stockholders (in usd per share)	$ 0.48	$ 0.34	$ 1.00	$ 1.09
Net income per common share - diluted attributable to EVERTEC, Inc.’s common stockholders (in usd per share)	$ 0.47	$ 0.34	$ 0.99	$ 1.07