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Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2015
Stock-Based Compensation  
Summary of the Company's restricted stock activity

 

 

 

 

 

 

 

 

 

 

 

    

 

    

Weighted Average

    

Aggregate

 

 

 

Shares

 

Grant‑Date Fair Value

 

Intrinsic‑Value

 

December 31, 2014

 
1,102,385

 

$
30.78

 

 

 

 

Granted

 
295,148

 

 
47.98

 

 

 

 

Vested

 
(376,092)

 

 
22.83

 

 

 

 

Forfeited

 
(39,706)

 

 
37.39

 

 

 

 

December 31, 2015

 
981,735

 

$
32.43

 

$
41.6