Quarterly Financial Information (Unaudited) - Schedule of Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Total revenues	$ 46,002	$ 48,985	$ 52,501	$ 43,438	$ 41,498	$ 53,367	$ 44,891	$ 33,849	$ 190,926	$ 173,605	$ 71,930
Operating loss	(32,590)	(28,821)	(23,222)	(40,533)	(34,395)	(7,916)	(17,430)	(87,123)	(125,166)	(146,864)	(69,962)
Net income (loss)	(44,912)	(30,011)	(50,031)	(65,320)	(33,275)	(39,029)	(41,494)	25,804	(190,274)	(87,994)	(85,616)
Net income (loss) attributable to Intrexon	$ (44,137)	$ (28,982)	$ (49,064)	$ (64,429)	$ (32,714)	$ (38,213)	$ (40,663)	$ 27,097	$ (186,612)	$ (84,493)	$ (81,822)
Net income (loss) attributable to Intrexon per share, basic					$ (0.28)	$ (0.34)	$ (0.37)	$ 0.26
Net income (loss) attributable to Intrexon per share, diluted					$ (0.28)	$ (0.34)	$ (0.37)	$ 0.25
Net loss attributable to Intrexon per share, basic and diluted	$ (0.37)	$ (0.24)	$ (0.42)	$ (0.55)					$ (1.58)	$ (0.76)	$ (0.83)