Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (53,862)	$ 14,991	$ (103,548)	$ (27,890)
Other comprehensive income (loss):
Unrealized gain on investments	4	39	95	24
Foreign currency translation adjustments	39	(46)	(28)	8
Comprehensive income (loss)	(53,819)	14,984	(103,481)	(27,858)
Comprehensive loss attributable to the noncontrolling interests	1,111	528	2,874	1,110
Comprehensive income (loss) attributable to Intrexon	$ (52,708)	$ 15,512	$ (100,607)	$ (26,748)