Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v2.4.0.8
Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Summary of compensation expense and stock award activity
 
Three Months Ended September 30
 
Nine Months Ended September 30
 
2013
 
2012
 
2013
 
2012
Stock-based compensation expense
$
3,099

 
$
2,822

 
$
7,040

 
$
6,095

Non-vested shares granted
3,600

 
16,750

 
345,700

 
386,500

Performance-based non-vested shares granted

 

 
62,500

 
56,250

Stock options exercised
12,400

 
179,832

 
334,500

 
259,132

Restricted stock awards vested (includes performance-based awards)
2,550

 
3,300

 
283,350

 
200,316

Summary of stock based compensation agreements
 
As of
 
September 30, 2013
 
December 31, 2012
Unrecognized stock-based compensation cost
$
19,529

 
$
13,072

Weighted average years remaining vesting period
2.40

 
2.17

Total equity awards outstanding (1)
1,328,885

 
1,615,235

 
(1)    Includes vested and unvested options outstanding and unvested restricted stock awards