Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details 2)

v2.4.0.6
Stock-Based Compensation (Details 2) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Mar. 31, 2012
Jun. 30, 2012
Summary of option activity      
Shares Outstanding, Beginning 4,886,414 4,863,718 4,863,718
Shares, Granted 589,263 149,652  
Shares, Exercised (99,837) (124,956)  
Shares, Forfeited (1,800) (2,000)  
Shares Outstanding, Ending 5,374,040 4,886,414 5,374,040
Shares, Options exercisable 2,977,757   2,977,757
Weighted-Average Exercise Price, Outstanding, Beginning $ 8.34 $ 8.19 $ 8.19
Weighted-Average Exercise Price, Granted $ 12.55 $ 12.45  
Weighted-Average Exercise Price, Exercised $ 6.18 $ 7.59  
Weighted-Average Exercise Price, Forfeited $ 9.00 $ 9.70  
Weighted-Average Exercise Price, Outstanding, Ending $ 8.84 $ 8.34 $ 8.84
Weighted-Average Exercise Price, Options exercisable $ 7.43   $ 7.43
Weighted-Average Remaining Contractual Life (Years), Outstanding 6 years 9 months 18 days 6 years 8 months 12 days  
Weighted-Average Remaining Contractual Life (Years), Exercisable     5 years 4 months 24 days
Aggregate Intrinsic Value, Outstanding $ 17,737 $ 20,544 $ 17,737
Aggregate Intrinsic Value, Options exercisable $ 13,769   $ 13,769