v3.7.0.1
Net Income (Loss) Per Common Share (Tables)
3 Months Ended
Mar. 31, 2017
Earnings Per Share [Abstract]  
Schedule of Weighted-Average Number of Common Shares
The following table shows the calculation of the diluted weighted-average number of common shares outstanding:
 
 
Three Months Ended 
 March 31,
 
 
2017
 
2016
Weighted-average number of common shares outstanding — basic
 
59,508,503

 
58,613,879

Total dilutive effect of outstanding share-based payments
 
353,397

 

Weighted-average number of common shares outstanding — diluted
 
59,861,900

 
58,613,879

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
The following potentially dilutive share-based payments were not included in the diluted net income (loss) per common share calculations as the impact would have been antidilutive for the periods presented:
 
 
Three Months Ended 
 March 31,
 
 
2017
 
2016
Stock options
 
6,768,262

 
7,394,111

Restricted stock units
 
2,875,876

 
1,290,502

Performance awards of restricted stock units
 
3,088,801

 
232,208

Shares to be purchased under employee stock purchase plan
 
31,514