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Consolidated Majority-Owned Subsidiaries - Pro Forma Financial Information - AquaBounty (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition [Line Items]
Net loss	$ 17,932us-gaap_ProfitLoss	$ (53,862)us-gaap_ProfitLoss	$ (52,935)us-gaap_ProfitLoss	$ 3,249us-gaap_ProfitLoss	$ (13,018)us-gaap_ProfitLoss	$ 14,991us-gaap_ProfitLoss	$ (6,519)us-gaap_ProfitLoss	$ (36,362)us-gaap_ProfitLoss	$ (85,616)us-gaap_ProfitLoss	$ (40,908)us-gaap_ProfitLoss	$ (81,874)us-gaap_ProfitLoss
Net loss attributable to noncontrolling interest									3,794	1,928	0
Add: Accretion of dividends on redeemable convertible preferred stock									0	(18,391)	(21,994)
Net loss attributable to common shareholders									(81,822)	(57,371)	(103,868)
Pro Forma
Business Acquisition [Line Items]
Revenues									119,721	86,991
Net loss									(81,938)	(41,718)
Net loss attributable to noncontrolling interest									4,159	2,766
Net loss attributable to Intrexon									(77,779)	(38,952)
Add: Accretion of dividends on redeemable convertible preferred stock									0	(18,391)
Net loss attributable to common shareholders									(77,779)	(57,343)
Pro Forma \| AquaBounty Technologies, Inc.
Business Acquisition [Line Items]
Revenues										23,760	13,774
Net loss										(48,760)	(78,651)
Net loss attributable to noncontrolling interest										2,310	2,062
Net loss attributable to Intrexon										(46,450)	(76,589)
Add: Accretion of dividends on redeemable convertible preferred stock										(18,391)	(21,994)
Net loss attributable to common shareholders										$ (64,841)	$ (98,583)