v3.6.0.2
Net Income (Loss) per Share Attributable to Common Stockholders - Computation of Numerators and Denominators of Basic and Diluted Net Income (Loss) per Share Attributable to Common Stockholders (Detail)
$ / shares in Units, shares in Thousands, $ in Thousands
 1 Months Ended 12 Months Ended
Feb. 29, 2016
USD ($)
Dec. 31, 2016
USD ($)
Class
$ / shares
shares
Dec. 31, 2015
USD ($)
$ / shares
shares
Dec. 31, 2014
USD ($)
shares
Sep. 30, 2016
Class
Earnings Per Share          
Number of classes of common stock | Class   2     2
Numerator:          
Net income   $ 20,482 $ 15,929 $ 5  
Less: Income attributable to convertible preferred stock     (10,958) $ (5)  
Add: Preferred stock modification     3,793    
Less: Premium on repurchase of convertible preferred stock $ (47,200) (47,209)      
Net income (loss) attributable to common stockholders   $ (26,727) $ 8,764    
Denominator:          
Weighted-average shares outstanding | shares   18,280 10,290 10,233  
Net income (loss) per share attributable to common stockholders-basic | $ / shares   $ (1.46) $ 0.85    
Numerator:          
Net income (loss) attributable to common stockholders-basic   $ (26,727) $ 8,764    
Add: Income attributable to dilutive convertible preferred stock     1,624    
Less: Preferred stock modification     (3,793)    
Net income (loss) attributable to common stockholders-diluted   $ (26,727) $ 6,595    
Denominator:          
Weighted-average shares outstanding | shares   18,280 10,290 10,233  
Dilutive convertible preferred stock | shares     2,790    
Options to purchase common stock | shares     3,699 2,901  
Weighted-average shares outstanding-diluted | shares   18,280 16,779 13,134  
Net income (loss) per share attributable to common stockholders-diluted | $ / shares   $ (1.46) $ 0.39