Unaudited Condensed Consolidated Statements of Changes in Equity - USD ($) shares in Thousands, $ in Thousands	Total deficit	EVO Payments, Inc. (deficit)/equity	Common Stock Class A Common Stock	Common Stock Class B Common Stock	Common Stock Class C Common Stock	Common Stock Class D Common Stock	Member Units Class A Units	Member Units Class B Units	Member Units Class C Units	Member Units Class D Units	Member Units Class E Units	Additional paid-in capital	Accumulated deficit attributable to Class A common stock	Accumulated deficit	Accumulated other comprehensive loss	Nonredeemable non-controlling interests	Total
Beginning balance at Dec. 31, 2017							$ 54,453		$ 9,463		$ 71,250
Beginning balance at Dec. 31, 2017	$ (166,531)	$ (169,843)												$ (237,330)	$ (67,679)	$ 3,312
Beginning balance (in units) at Dec. 31, 2017							6,374	3,506	375	1,107	1,012
Shareholders'/members' equity (deficit)
Net income prior to Reorganization Transaction	(24,412)	(24,412)												(24,412)
Cumulative translation adjustment prior to Reorganization Transactions	(6,337)	(6,337)													(6,337)
Secondary Offering	190,161	190,161	$ 1									$ 190,161
Secondary Offering (in shares)			8,054
Distributions prior to Reorganization Transactions	(1,334)															(1,334)
Acquisition of additional shares in a consolidated subsidiary	(22,065)	(20,924)												(20,924)		(1,141)
Legacy deficit / accumulated comprehensive loss allocation (Class C&D)		166,793												132,181	34,612	(166,793)
Legacy deficit / accumulated comprehensive loss allocation (Class B)	189,889	189,889												$ 150,485	39,404
Equity issued in connection with acquisition prior to Reorganization Transactions				$ 4		$ 2	$ (54,453)		$ (9,463)		$ (71,250)	135,160
Equity issued in connection with acquisition prior to Reorganization Transactions (in units and shares)			1,319	35,914	2,561	24,305	(6,374)	(3,506)	(375)	(1,107)	(1,012)
Share-based compensation prior to Reorganization Transactions, net of share settlement	51,339	51,339										51,339
Share-based compensation prior to Reorganization Transactions, net of share settlement (in shares)			494
Class B redeemable non-controlling interests fair value adjustment in connection to Reorganization Transactions	(735,775)															(735,775)
Effect of Reorganization Transactions	(715,226)	186,505		$ 4		$ 2						186,499				(901,731)
Effect of Reorganization Transactions (in shares)			1,813	35,914	2,561	24,305
Sale of Class A common stock in initial public offering, net	219,169	219,169	$ 2									219,167
Sale of Class A common stock in initial public offering, net (in shares)			15,434
Contingent consideration settled in Class A common stock	771	771										771
Contingent consideration settled in Class A common stock (in shares)			48
Deferred taxes in connection with the Reorganization Transactions	4,590	4,590										4,590
Share-based compensation	1,758	1,758										1,758
Tax receivable agreement obligations in connection with the Reorganization Transactions	389	389										389
Net income subsequent to the Reorganization Transactions	(31,389)	(10,675)											$ (10,675)			(20,714)
Cumulative translation adjustment subsequent to the Reorganization Transactions	1,145	293													293	852
Legacy redeemable non-controlling interest fair value adjustment	(9,742)	(3,824)											(3,824)			(5,918)
Distributions subsequent to the Reorganization Transactions	(29)															(29)	$ (29)
Sale of Employee Ownership		(857)										(857)				857
Sale of Employee Ownership (in shares)			22			(22)
Purchase of MDP Class D Shares	(165,926)	(435,850)				$ (1)						(435,850)				269,924
Purchase of MDP Class D Shares (in shares)						(7,000)
Net deferred tax asset realized in Secondary Offering	2,071	2,071										2,045			26
Tax receivable agreement in connection with the Secondary Offering	7,170	7,170										7,170					7,170
Additional redeemable non-controlling interest subsequent to the Reorganization Transactions	(296,839)	(116,559)											(116,559)			(180,280)	9,742
Ending balance at Sep. 30, 2018	(791,927)	45,112	$ 3	$ 4		$ 1						175,843	(131,058)		319	(837,039)	177,349
Ending balance (in shares) at Sep. 30, 2018			25,371	35,914	2,561	17,283
Beginning balance at Dec. 31, 2017																	148,266
Redeemable non-controlling interests
Net income prior to Reorganization Transactions																	1,291
Cumulative translation adjustment prior to Reorganization Transactions																	(2,104)
Distributions prior to Reorganization Transactions																	(3,770)
Legacy deficit / accumulated comprehensive loss allocation (Class B)																	(189,889)
Legacy redeemable non-controlling interests fair value adjustment																	(1,004)
Class B redeemable non-controlling interests fair value adjustment in connection to Reorganization Transactions																	735,775
Effect of Reorganization Transactions																	689,569
Net income subsequent to the Reorganization Transactions																	(25,059)
Cumulative translation adjustment subsequent to the Reorganization Transactions																	(811)
Additional redeemable non-controlling interest subsequent to the Reorganization Transactions																	306,581
Ending balance at Sep. 30, 2018																	969,276
Beginning balance at Dec. 31, 2017																	(18,265)
Total equity
Net (loss) income																	(79,569)
Net income prior to Reorganization Transactions																	(23,121)
Cumulative translation adjustment prior to Reorganization Transactions																	(8,441)
Legacy redeemable non-controlling																	(10,746)
Distributions prior to Reorganization Transactions																	(5,104)
Acquisition of additional shares in a consolidated subsidiary																	(22,065)
Share-based compensation prior to Reorganization Transactions, net of share settlement																	51,339
Effect of Reorganization Transactions																	(25,657)
Sale of Class A common stock in initial public offering, net of underwriter fees																	219,169
Contingent Consideration Settled In Class A Common Stock																	771
Deferred taxes in connection with the Reorganization Transactions and subsequent conversions of shares of class C common stock and class D common stock																	4,590
Net deferred tax asset realized in Secondary Offering																	2,071
Tax receivable agreement in connection with the Reorganization Transaction, and subsequent conversions of shares of Class C common stock and Class D common stock																	389
Net income subsequent to the Reorganization Transactions																	(56,448)
Cumulative translation adjustment subsequent to the Reorganization Transactions																	334
Sale of Class A common stock in Secondary Offering, net of underwriter fees																	190,161
Sale of MDP Class D Shares																	(165,926)
Share-based compensation																	1,758
Ending balance at Dec. 31, 2018	(862,682)	(48,608)	$ 3	$ 4		$ 1						178,176	(223,799)		(2,993)	(814,074)	(862,682)
Ending balance (in shares) at Dec. 31, 2018			26,025	35,914	2,461	16,786
Beginning balance at May. 23, 2018																	689,569
Ending balance at Dec. 31, 2018																	1,010,093
Ending balance at Dec. 31, 2018																	147,411
Beginning balance at Jun. 30, 2018	(679,827)	356,146	$ 2	$ 4		$ 2						412,845	(55,076)		(1,631)	(1,035,973)
Beginning balance (in shares) at Jun. 30, 2018			17,295	35,914	2,561	24,305
Shareholders'/members' equity (deficit)
Net income (loss)	(26,806)	(27,388)											(27,388)			582
Cumulative translation adjustment prior to Reorganization Transactions	4,765	1,924													1,924	2,841
Distributions	(29)															(29)	(1,004)
Secondary Offering	190,162	190,162	$ 1									190,161					190,162
Secondary Offering (in shares)			8,054
Share-based compensation	1,758	1,758										1,758
eService redeemable non-controlling interest fair value adjustment	(15,098)	(5,928)											(5,928)			(9,170)
Sale of Employee Ownership		(857)										(857)				857
Sale of Employee Ownership (in shares)			22			(22)
Purchase of MDP Class D Shares	(165,927)	(435,851)				$ (1)						(435,850)				269,924	(165,927)
Purchase of MDP Class D Shares (in shares)						(7,000)
Net deferred tax asset realized in Secondary Offering	2,071	2,071										2,045			26		2,071
Tax receivable agreement in connection with the Secondary Offering	7,170	7,170										7,170					7,170
Blueapple redeemable non-controlling interest	(108,737)	(42,666)											(42,666)			(66,071)
Other	(1,429)	(1,429)										(1,429)					(1,429)
Ending balance at Sep. 30, 2018	(791,927)	45,112	$ 3	$ 4		$ 1						175,843	(131,058)		319	(837,039)	177,349
Ending balance (in shares) at Sep. 30, 2018			25,371	35,914	2,561	17,283
Beginning balance at Jun. 30, 2018																	838,789
Redeemable non-controlling interests
Net income (loss)																	2,928
Cumulative translation adjustment prior to Reorganization Transactions																	4,728
eService redeemable non-controlling interest fair value adjustment																	108,737
Share-based compensation																	15,098
Ending balance at Sep. 30, 2018																	969,276
Beginning balance at Jun. 30, 2018																	158,962
Total equity
Net (loss) income																	(23,878)
Cumulative translation adjustment prior to Reorganization Transactions																	9,493
Distributions																	(1,033)
Tax receivable agreement in connection with the Reorganization Transaction, and subsequent conversions of shares of Class C common stock and Class D common stock																	1,758
Beginning balance at Dec. 31, 2018	(862,682)	(48,608)	$ 3	$ 4		$ 1						178,176	(223,799)		(2,993)	(814,074)	(862,682)
Beginning balance (in shares) at Dec. 31, 2018			26,025	35,914	2,461	16,786
Shareholders'/members' equity (deficit)
Prior period adjustment		(20,629)										(20,629)				20,629
Net income (loss)	(12,719)	(6,671)											(6,671)			(6,048)
Cumulative translation adjustment prior to Reorganization Transactions	(7,987)	(5,862)													(5,862)	(2,125)
Distributions	(284)															(284)
Secondary Offering	53,752	(303,400)	$ 1	$ (1)								(303,400)				357,152
Secondary Offering (in shares)			9,750	(1,250)		(7,750)
Decrease in redemption amount in connection with redemption of Blueapple Class B shares	2,460	1,721											1,721			739	(2,460)
Share-based compensation	7,841	7,841										7,841
Vesting of equity awards	(1,716)	(1,716)										(1,716)
Vesting of equity awards (in shares)			80
Stock options exercised	810	810										810					810
Stock options exercised (in shares)			49
Deferred taxes in connection with share exchanges	3,395	3,395										3,395
Tax receivable agreement in connection with share exchanges	13,005	13,005										13,005					13,005
Exchange of Class C and Class D common stock for Class A common stock		(37,385)										(37,385)				37,385
Exchange of Class C and Class D common stock for Class A common stock (in shares)			808		(127)	(681)
eService redeemable non-controlling interest fair value adjustment	(8,380)	(5,817)											(5,817)			(2,563)
Blueapple redeemable non-controlling interest	(150,701)	(77,134)											(77,134)			(73,567)
Reclassification of additional paid-in-capital to accumulated deficit												159,903	(159,903)
Ending balance at Sep. 30, 2019	(963,206)	(480,450)	$ 4	$ 3		$ 1							(471,603)		(8,855)	(482,756)	(963,206)
Ending balance (in shares) at Sep. 30, 2019			36,712	34,664	2,334	8,355
Beginning balance at Dec. 31, 2018																	1,010,093
Redeemable non-controlling interests
Net income (loss)																	(7,477)
Cumulative translation adjustment prior to Reorganization Transactions																	(9,616)
Distributions																	(6,209)
Secondary Offering																	(34,768)
eService redeemable non-controlling interest fair value adjustment																	8,380
Blueapple redeemable non-controlling interest subsequent to the Reorganization Transactions																	150,701
Ending balance at Sep. 30, 2019																	1,108,644
Beginning balance at Dec. 31, 2018																	147,411
Total equity
Net (loss) income																	(20,196)
Cumulative translation adjustment prior to Reorganization Transactions																	(17,603)
Distributions																	(6,493)
Secondary Offering																	18,984
Vesting of equity awards																	(1,716)
Deferred taxes in connection with share conversions																	3,395
Share-based compensation																	7,841
Ending balance at Sep. 30, 2019																	145,438
Beginning balance at Jun. 30, 2019	(1,086,758)	(420,867)	$ 3	$ 4		$ 1							(419,722)		(1,153)	(665,891)
Beginning balance (in shares) at Jun. 30, 2019			32,490	35,414	2,370	11,765
Shareholders'/members' equity (deficit)
Net income (loss)	(3,880)	(1,844)											(1,844)			(2,036)
Cumulative translation adjustment prior to Reorganization Transactions	(10,454)	(7,702)													(7,702)	(2,752)
Distributions	(53)															(53)
Secondary Offering	21,188	(132,100)	$ 1	$ (1)								(132,100)				153,288
Secondary Offering (in shares)			4,000	(750)		(3,250)
Decrease in redemption amount in connection with redemption of Blueapple Class B shares	2,460	1,721											1,721			739	(2,460)
Share-based compensation	3,019	3,019										3,019
Vesting of equity awards	(78)	(78)										(78)
Vesting of equity awards (in shares)			5
Stock options exercised	519	519										519					519
Stock options exercised (in shares)			21
Deferred taxes in connection with share exchanges	1,323	1,323										1,323					1,323
Tax receivable agreement in connection with share exchanges	6,065	6,065										6,065					6,065
Exchange of Class C and Class D common stock for Class A common stock		(10,615)										(10,615)				10,615
Exchange of Class C and Class D common stock for Class A common stock (in shares)			196		(36)	(160)
eService redeemable non-controlling interest fair value adjustment	(1,968)	(1,524)											(1,524)			(444)
Blueapple redeemable non-controlling interest	105,411	81,633											81,633			23,778
Reclassification of additional paid-in-capital to accumulated deficit												$ 131,867	(131,867)
Ending balance at Sep. 30, 2019	$ (963,206)	$ (480,450)	$ 4	$ 3		$ 1							$ (471,603)		$ (8,855)	$ (482,756)	(963,206)
Ending balance (in shares) at Sep. 30, 2019			36,712	34,664	2,334	8,355
Beginning balance at Jun. 30, 2019																	1,248,448
Redeemable non-controlling interests
Net income (loss)																	(1,124)
Cumulative translation adjustment prior to Reorganization Transactions																	(11,589)
Secondary Offering																	(21,188)
eService redeemable non-controlling interest fair value adjustment																	1,968
Blueapple redeemable non-controlling interest subsequent to the Reorganization Transactions																	(105,411)
Ending balance at Sep. 30, 2019																	1,108,644
Beginning balance at Jun. 30, 2019																	161,690
Total equity
Net (loss) income																	(5,004)
Cumulative translation adjustment prior to Reorganization Transactions																	(22,043)
Distributions																	(53)
Vesting of equity awards																	(78)
Share-based compensation																	3,019
Ending balance at Sep. 30, 2019																	$ 145,438