Condensed Financial Statements Parent Company Only - Condensed Statements of Income and Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Non-operating income (expenses)
Equity in earnings of subsidiaries	$ 1,713	$ 1,136	$ 936
Interest income	1,889	1,502	1,217
Other income (expenses)	4,399	4,897	(1,169)
Income before income taxes	181,705	123,853	116,675
Income tax benefit	20,562	19,002	12,975
Net income attributable to EVERTEC, Inc.’s common stockholders	161,130	104,436	103,469
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	(11,129)	(7,970)	4,754
Loss on cash flow hedges	11,151	(10,275)	(10,974)
Unrealized gain on change in fair value of debt securities available-for-sale	109	0	0
Total comprehensive income attributable to EVERTEC, Inc.’s common stockholders	161,261	86,191	97,249
EVERTEC
Non-operating income (expenses)
Equity in earnings of subsidiaries	157,787	103,308	101,078
Interest income	157	234	367
Other income (expenses)	(2,563)	(1,594)	(1,595)
Income before income taxes	155,381	101,948	99,850
Income tax benefit	(5,749)	(2,489)	(3,619)
Net income attributable to EVERTEC, Inc.’s common stockholders	161,130	104,437	103,469
Other comprehensive income (loss), net of tax
Foreign currency translation adjustments	(11,129)	(7,970)	4,754
Loss on cash flow hedges	11,151	(10,275)	(10,974)
Unrealized gain on change in fair value of debt securities available-for-sale	109	0	0
Total comprehensive income attributable to EVERTEC, Inc.’s common stockholders	$ 161,261	$ 86,192	$ 97,249