Investments in Joint Ventures - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified			1 Months Ended	3 Months Ended		1 Months Ended	3 Months Ended	1 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Oct. 31, 2013 S & I Ophthalmic, LLC	Mar. 31, 2014 S & I Ophthalmic, LLC	Dec. 31, 2013 S & I Ophthalmic, LLC	Jan. 31, 2014 OvaXon, LLC	Mar. 31, 2014 OvaXon, LLC	Mar. 26, 2014 Intrexon Energy Partners, LLC	Mar. 26, 2014 Intrexon Energy Partners, LLC Maximum	Mar. 26, 2014 Intrexon Energy Partners, LLC Maximum Investors
Schedule Of Investments In Joint Venture [Line Items]
Initial capital contribution			$ 5,000			$ 1,500		$ 25,000
Membership interest			50.00%			50.00%		50.00%
Additional capital contribution									25,000	25,000
Total Assets				9,231	9,850		2,995
Total Liabilities				542	283		190
Net loss				878			194
Investment	$ 5,747	$ 6,284		$ 4,345	$ 4,784		$ 1,403