Unaudited Condensed Consolidated Statements of Income and Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Revenues (affiliates Note 15)	$ 149,148	$ 117,937	$ 288,676	$ 239,879
Operating costs and expenses
Cost of revenues, exclusive of depreciation and amortization	59,381	56,979	119,185	111,046
Selling, general and administrative expenses	16,752	17,529	32,854	34,846
Depreciation and amortization	18,723	17,839	37,346	35,634
Total operating costs and expenses	94,856	92,347	189,385	181,526
Income from operations	54,292	25,590	99,291	58,353
Non-operating income (expenses)
Interest income	450	373	839	736
Interest expense	(5,658)	(6,183)	(11,564)	(12,962)
Earnings of equity method investment	394	193	896	531
Other income, net	2,245	172	2,573	280
Total non-operating expenses	(2,569)	(5,445)	(7,256)	(11,415)
Income before income taxes	51,723	20,145	92,035	46,938
Income tax expense	2,632	4,520	7,340	9,038
Net income	49,091	15,625	84,695	37,900
Less: Net (loss) income attributable to non-controlling interest	(106)	141	(5)	205
Net income attributable to EVERTEC, Inc.’s common stockholders	49,197	15,484	84,700	37,695
Other comprehensive income (loss), net of tax of $11, $(2), $435 and $(1,087)
Foreign currency translation adjustments	1,732	1,067	(881)	(7,238)
Gain (loss) on cash flow hedges	1,088	(678)	5,277	(12,537)
Unrealized gain on change in fair value of debt securities available-for-sale	89	0	89	0
Total comprehensive income attributable to EVERTEC, Inc.’s common stockholders	$ 52,106	$ 15,873	$ 89,185	$ 17,920
Net income per common share - basic attributable to EVERTEC, Inc.’s common stockholders (in usd per share)	$ 0.68	$ 0.22	$ 1.17	$ 0.52
Net income per common share - diluted attributable to EVERTEC, Inc.’s common stockholders (in usd per share)	$ 0.68	$ 0.21	$ 1.16	$ 0.52