Cover - USD ($)	12 Months Ended
	Dec. 31, 2021	Feb. 18, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-35872
Entity Registrant Name	EVERTEC, Inc.
Entity Incorporation, State or Country Code	PR
Entity Tax Identification Number	66-0783622
Entity Address, Address Line One	Cupey Center Building,
Entity Address, Address Line Two	Road 176, Kilometer 1.3,
Entity Address, City or Town	San Juan,
Entity Address, Country	PR
Entity Address, Postal Zip Code	00926
City Area Code	787
Local Phone Number	759-9999
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	EVTC
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 2,628,353,889
Entity Common Stock, Shares Outstanding (in shares)		71,969,856
Documents Incorporated by Reference	Specifically identified portions of the registrant's definitive Proxy Statement relating to its 2022 Annual Meeting of Shareholders are incorporated by reference in Part III.
Entity Central Index Key	0001559865
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false