v2.4.0.8
Net Income (Loss) Per Share - Historical Computation of Basic and Diluted Net Income (Loss) Per Share (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Dec. 31, 2011
Numerator:            
Net income (loss) attributable to Intrexon $ 15,440 $ (20,490) $ (26,776) $ (50,937) $ (81,874) $ (85,280)
Accretion of dividends on redeemable convertible preferred stock (4,044) (5,469) (18,391) (16,291) (21,994) (13,868)
Undistributed earnings allocated to preferred shareholders (3,106)          
Net income (loss) attributable to common shareholders $ 8,290 $ (25,959) $ (45,167) $ (67,228) $ (103,868) $ (99,148)
Denominator:            
Weighted average shares outstanding, basic and diluted         5,533,690 5,240,647
Weighted average shares outstanding, basic 54,305,354 5,576,526 22,056,396 5,506,043    
Weighted average effect of dilutive stock options and warrants 1,845,642          
Weighted average shares outstanding, diluted 56,150,996 5,576,526 22,056,396 5,506,043    
Net income (loss) attributable to common shareholders per share, basic $ 0.15 $ (4.66) $ (2.05) $ (12.21)    
Net loss attributable to common shareholders per share, basic and diluted         $ (18.77) $ (18.92)
Net income (loss) attributable to common shareholders per share, diluted $ 0.15 $ (4.66) $ (2.05) $ (12.21)