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NET INCOME PER SHARE (TABLES)
 6 Months Ended
Jun. 30, 2017
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):

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended June 30,

 

Six Months Ended June 30,

 

    

2017

    

2016

    

2017

    

2016

 

 

 

 

 

 

 

 

 

Shares used in basic earnings per share calculation

 

45,662

 

47,873

 

45,805

 

48,120

Effect of dilutive securities:

 

 

 

 

 

 

 

 

Stock options

 

11

 

10

 

 6

 

14

Restricted stock units

 

460

 

324

 

395

 

335

Performance-based restricted stock units

 

17

 

14

 

18

 

14

Total effects of dilutive securities

 

488

 

348

 

419

 

363

Shares used in dilutive earnings per share calculation

 

46,150

 

48,221

 

46,224

 

48,483