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Fair Value Measurements - Additional Information (Detail) - shares
3 Months Ended
Jun. 29, 2016
Mar. 31, 2017
Intrexon Corporation | Series 1 Preferred Stock    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Issuance of stock in a license agreement (in shares) 100,000 3,216