Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		4 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share
Net loss attributable to EVO Payments, Inc.	$ (1,844)	$ (27,389)	$ (10,675)	$ (6,671)	$ (10,675)
Weighted average Class A common stock outstanding	34,634,567	18,163,344	17,901,484	30,996,506	17,901,484
Total dilutive securities	34,634,567	18,163,344	17,901,484	30,996,506	17,901,484
Basic (in dollars per share)	$ (0.05)	$ (1.51)	$ (0.60)	$ (0.22)	$ (0.60)
Diluted (in dollars per share)	$ (0.05)	$ (1.51)	$ (0.60)	$ (0.22)	$ (0.60)
Stock options
Earnings Per Share
Antidilutive securities	3,307,082	2,097,054	2,097,054	3,002,231
RSUs
Earnings Per Share
Antidilutive securities	844,616	499,510	499,510	790,719
Class C Common Stock
Earnings Per Share
Antidilutive securities	2,327,511	2,560,955	2,560,955	2,399,326
Class D Common Stock
Earnings Per Share
Antidilutive securities	10,019,169	17,282,930	17,282,930	12,829,719
Unit Appreciation Rights
Earnings Per Share
Antidilutive securities	14,672	58,809	58,809	22,359