Net Loss per Share - Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Numerator:
Net loss attributable to Intrexon	$ (49,064)	$ (40,663)	$ (113,493)	$ (13,566)
Denominator:
Weighted average shares outstanding, basic and diluted	118,141,377	109,318,471	117,501,264	107,720,040
Net loss attributable to Intrexon per share, basic and diluted (in usd per share)	$ (0.42)	$ (0.37)	$ (0.97)	$ (0.13)