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Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share
Net (loss) income attributable to EVO Payments, Inc	$ 16,713	$ 463	$ 16,713	$ (4,827)	$ 16,713
Weighted average Class A common stock outstanding	17,293,355	31,898,531	17,293,355	29,147,326	17,293,355
Effect of dilutive securities	139,367
Total dilutive securities	17,432,722	31,898,531	17,432,722	29,147,326	17,432,722
Basic (in dollars per share)	$ 0.97	$ 0.01	$ 0.97	$ (0.17)	$ 0.97
Diluted (in dollars per share)	$ 0.96	$ 0.01	$ 0.96	$ (0.17)	$ 0.96
Stock options
Earnings Per Share
Antidilutive securities	163,144	3,346,839		2,847,279
RSUs
Earnings Per Share
Antidilutive securities		923,813		763,323
Class C Common Stock
Earnings Per Share
Antidilutive securities	2,560,955	2,414,771		2,435,830
Class D Common Stock
Earnings Per Share
Antidilutive securities	24,305,155	12,127,451		14,258,286
Unit Appreciation Rights
Earnings Per Share
Antidilutive securities		17,748		26,267