Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details)

v2.4.0.8
Stock-Based Compensation (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Summary of compensation expense and stock award activity    
Stock-based compensation expense $ 2,411 $ 1,844
Stock options exercised 40,245 122,273
Performance based awards [Member]
   
Summary of compensation expense and stock award activity    
Non-vested shares granted 52,083 62,500
Restricted Stock Awards [Member]
   
Summary of compensation expense and stock award activity    
Non-vested shares granted 355,283 332,100
Restricted stock awards vested (includes performance based awards) 300,170 274,600