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STOCK-BASED COMPENSATION (Tables)
 6 Months Ended
Jun. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock options activity
The Company’s stock option activity for the six months ended June 30, 2013 was as follows:
Stock Options (shares in thousands)
Shares
 
Weighted Average Exercise Price
Outstanding at December 31, 2012
1,676

 
$
12.13

Granted
159

 
17.24

Exercised
(232
)
 
5.94

Cancelled or expired
—

 
—

Outstanding at June 30, 2013
1,603

 
$
13.53
Restricted shares activity
The Company’s restricted share activity for the six months ended June 30, 2013 was as follows:
Restricted Stock Awards (shares in thousands)
Shares
 
Weighted Average Grant Price
Non-vested at December 31, 2012
818

 
$
19.32

Granted
354

 
17.28

Vested
(245
)
 
18.84

Cancelled or expired
(14
)
 
19.70

Non-vested at June 30, 2013
913

 
$
18.65

 
 
 
 
Restricted Stock Units (in thousands)
Shares
 
 

Non-vested at December 31, 2012
875

 
 

Granted
193

 
 

Vested
(74
)
 
 

Cancelled or expired
(145
)
 
 

Non-vested at June 30, 2013
849

 
 
Stock-based compensation costs recognized in consolidated statements of income
The following are the stock-based compensation costs recognized in the Company’s condensed consolidated statements of comprehensive income (in thousands):
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2013
 
2012
 
2013
 
2012
Cost of revenue
$
199

 
$
246

 
$
402

 
$
475

Research and development
570

 
472

 
1,217

 
988

Selling, general and administrative
1,643

 
1,853

 
3,225

 
3,751

Stock-based compensation costs reflected in net income
$
2,412

 
$
2,571

 
$
4,844

 
$
5,214