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NET INCOME PER SHARE (TABLES)
 12 Months Ended
Dec. 31, 2016
NET INCOME PER SHARE [Abstract]  
Schedule of Diluted Shares Calculation

The following table sets forth the computation of basic and diluted shares for the periods indicated (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

Year Ended December 31,

 

 

    

    

2016

    

2015

    

2014

 

 

 

 

 

 

 

 

 

 

Shares used in basic earnings per share calculation

 

 
47,423

 
48,370

 
49,297

 

Effect of dilutive securities:

 

 

 

 

 

 

 

 

Stock options

 

 
10

 
275

 
413

 

Restricted stock units

 

 
286

 
338

 
392

 

Performance-based restricted stock units

 

 
17

 
28

 

—

 

Total effects of dilutive securities

 

 
313

 
641

 
805

 

Shares used in dilutive earnings per share calculation

 

 
47,736

 
49,011

 
50,102