Debt and Short-Term Borrowings - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended				12 Months Ended			12 Months Ended																			12 Months Ended		1 Months Ended		12 Months Ended
	Dec. 31, 2012 Installment	Dec. 31, 2013 Installment	Dec. 31, 2012	Dec. 13, 2013	Aug. 31, 2013	Dec. 31, 2012 LIBOR Floor	Dec. 31, 2013 Revolving Credit Facility	Apr. 17, 2013 Revolving Credit Facility	Dec. 31, 2013 Revolving Credit Facility Minimum	Dec. 31, 2013 Revolving Credit Facility Maximum	Dec. 31, 2013 New senior secured term loan A	Dec. 31, 2013 New senior secured term loan A Commencing On September 30, 2013 To June 2016	Dec. 31, 2013 New senior secured term loan A Commencing On September 30, 2016 To June 30, 2017	Dec. 31, 2013 New senior secured term loan A Commencing On September 30, 2017 To March 31, 2018	Dec. 31, 2013 New senior secured term loan A LIBOR Floor Minimum	Dec. 31, 2013 New senior secured term loan A LIBOR Floor Maximum	Dec. 31, 2013 New senior secured term loan A Base Rate Minimum	Dec. 31, 2013 New senior secured term loan A Base Rate Maximum	Dec. 31, 2013 New senior secured term loan B	Dec. 31, 2013 New senior secured term loan B Minimum	Dec. 31, 2013 New senior secured term loan B Maximum	Dec. 31, 2013 New senior secured term loan B LIBOR Floor Minimum	Dec. 31, 2013 New senior secured term loan B LIBOR Floor Maximum	Dec. 31, 2013 New senior secured term loan B Base Rate Minimum	Dec. 31, 2013 New senior secured term loan B Base Rate Maximum	Apr. 17, 2013 Secured Term Loan A	Apr. 17, 2013 Secured Term Loan B	Dec. 31, 2013 Senior Secured Credit Facilities	Dec. 31, 2013 New senior secured credit facilities	Apr. 29, 2013 Senior Notes	Apr. 30, 2013 Senior Notes	Dec. 31, 2013 Senior Notes	Dec. 31, 2012 Senior Notes
Debt Instrument [Line Items]
Secured credit facilities				$ 50,000,000			$ 50,000,000	$ 100,000,000			$ 292,500,000								$ 398,000,000							$ 300,000,000	$ 400,000,000
Unamortized discount																												6,400,000
Debt issuance cost			8,800,000																									5,900,000	7,200,000
Unamortized discount written off																												3,400,000
Debt issuance cost written off																												3,000,000	4,900,000			7,000,000
Satisfaction and Discharge of Indenture description																																(i)) at a redemption price of 100.0% plus a make-whole premium and accrued and unpaid interest, on April 30, 2013 (the “Full Redemption”). On April 17, 2013, the Co-Issuers and the Trustee entered into a Satisfaction and Discharge Agreement whereby EVERTEC Group caused to be irrevocably deposited with the Trustee, to satisfy and to discharge the Co-Issuers’ obligations under the Indenture (a) a portion of the net cash proceeds received by the Company in the Initial Public Offering to Holdings, which contributed such proceeds to EVERTEC Group, in an amount sufficient to effect the Partial Redemption on April 29, 2013 and (b) proceeds from the 2013 Credit Agreement described above in an amount sufficient to effect the Full Redemption on April 30, 2013. On April 29, 2013, the Partial Redemption was effected and on April 30, 2013, the Full Redemption was effected.
Principal amount of outstanding, redemption value																																91,000,000
Percentage of redemption price																														111.00%	100.00%
Debt instrument premium																																1,800,000
Debt redemption premium																																41,900,000
Original principal amount												1.25%	1.875%	2.50%					0.25%
Maturity Date							Apr. 17, 2018				Apr. 17, 2018								Apr. 17, 2020													Oct. 01, 2018	Oct. 01, 2018
LIBOR rate and base rate percentage						1.50%									2.00%	2.50%	1.00%	1.50%		0.75%	1.75%	2.50%	2.75%	1.50%	1.75%
Debt instrument description																			The LIBOR Rate and Base Rate are subject to floors of 0.75% and 1.75%, respectively
Commitment fee for the unused portion									0.125%	0.375%
Premium Payable on loans		1.00%
Maximum secured leverage ratio		6.60
Debt instrument, term	10 years	8 months
Other short-term borrowing, number of payments	3	3
Other short-term borrowing	$ 12,995,000	$ 1,200,000	$ 12,995,000		$ 1,800,000