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Net Income Per Share (Tables)
3 Months Ended
Mar. 31, 2016
Earnings Per Share [Abstract]  
Reconciliation of Common Shares Used for Basic and Diluted Earnings Per Share
The following table provides a reconciliation of the common shares used for basic net income per share to the diluted shares used for diluted net income per share:
 
Three Months Ended March 31,
 
2016
 
2015
Basic weighted average shares outstanding
45,176,978

 
45,156,202

Effect of potential dilutive shares:
 
 
 
Warrants

 
1,751,798

Stock options

 
12,841

Restricted stock units
56,902

 
25,013

Performance stock units
10,117

 
3,145

Diluted weighted average shares outstanding
45,243,997

 
46,948,999