Related Party Transactions - Additional Information (Detail) (USD $)	0 Months Ended				12 Months Ended			0 Months Ended
	Jan. 12, 2011	Oct. 29, 2013	Nov. 07, 2012	Jan. 25, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 02, 2015
Related Party Transaction [Line Items]
Prepaid expenses and other current assets					$ 1,139,000	$ 1,948,000
Stock issued during period	3,636,926
Intrexon Corporation
Related Party Transaction [Line Items]
Payments for services					10,100,000	2,400,000	11,400,000
Amounts paid for services incurred					12,000,000	7,800,000	6,600,000
Prepaid expenses and other current assets					0	4,800,000	4,800,000
Accrued expense					$ 1,900,000	$ 600,000
Stock issued during period		2,857,143	3,636,926	1,923,075
Intrexon Corporation | Subsequent Event
Related Party Transaction [Line Items]
Stock issued during period								1,440,000