Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Share capital	Additional paid-in capital	Accumulated other comprehensive (loss) income	Retained earnings	Equity - attributable to shareholders of Criteo S.A.	Non controlling interests
Beginning balance (in shares) at Dec. 31, 2013		56,856,070
Beginning balance at Dec. 31, 2013	$ 365,561	$ 1,873	$ 336,804	$ 15,624	$ 10,967	$ 365,268	$ 293
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	46,896				45,556	45,556	1,340
Other comprehensive income (loss)	(47,755)			(47,524)		(47,524)	(231)
Issuance of ordinary shares	32,040	$ 135	31,905			32,040
Shared-based compensation	19,601		19,263			19,263	338
Other changes in equity	$ 12			12		12
Ending balance (in shares) at Dec. 31, 2014	60,902,695	60,902,695
Ending balance at Dec. 31, 2014	$ 416,355	$ 2,008	387,972	(31,888)	56,523	414,615	1,740
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	62,276				59,553	59,553	2,723
Other comprehensive income (loss)	(37,129)			(37,135)		(37,135)	6
Issuance of ordinary shares	13,770	$ 44	13,726			13,770
Shared-based compensation	23,989		23,760			23,760	229
Other changes in equity	$ (238)		(238)			(238)
Ending balance (in shares) at Dec. 31, 2015	62,470,881	62,470,881
Ending balance at Dec. 31, 2015	$ 479,023	$ 2,052	425,220	(69,023)	116,076	474,325	4,698
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	87,329				82,272	82,272	5,057
Other comprehensive income (loss)	(19,700)			(19,452)		(19,452)	(248)
Issuance of ordinary shares	21,747	$ 41	21,706			21,747
Shared-based compensation	41,589		41,351			41,351	238
Other changes in equity	$ (111)			(118)	7	(111)
Ending balance (in shares) at Dec. 31, 2016	63,978,204	63,978,204
Ending balance at Dec. 31, 2016	$ 609,877	$ 2,093	$ 488,277	$ (88,593)	$ 198,355	$ 600,132	$ 9,745