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Equity Incentive Plans and Stock-Based Compensation (Details 4) | 12 Months Ended
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Dec. 31, 2015 $ / shares shares
Exercise price range 1 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | $ 4.13
Exercise price range, high end of range (in dollars per share) | $ 5.39
Options Outstanding |
Number Outstanding (in shares) | shares | 901,728
Weighted Average Remaining Contractual Life (in years) | 5 years 11 months 27 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 4.35
Options Exercisable |
Number Exercisable (in shares) | shares | 125,244
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 4.81
Exercise price range 2 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 5.46
Exercise price range, high end of range (in dollars per share) | $ 5.46
Options Outstanding |
Number Outstanding (in shares) | shares | 957,421
Weighted Average Remaining Contractual Life (in years) | 6 years 7 months 6 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 5.46
Options Exercisable |
Number Exercisable (in shares) | shares | 638,284
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 5.46
Exercise price range 3 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 5.49
Exercise price range, high end of range (in dollars per share) | $ 5.63
Options Outstanding |
Number Outstanding (in shares) | shares | 885,485
Weighted Average Remaining Contractual Life (in years) | 3 years 1 month 17 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 5.63
Options Exercisable |
Number Exercisable (in shares) | shares | 876,781
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 5.63
Exercise price range 4 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 5.76
Exercise price range, high end of range (in dollars per share) | $ 5.76
Options Outstanding |
Number Outstanding (in shares) | shares | 1,210,505
Weighted Average Remaining Contractual Life (in years) | 6 years 6 months
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 5.76
Options Exercisable |
Number Exercisable (in shares) | shares | 522,321
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 5.76
Exercise price range 5 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 6.39
Exercise price range, high end of range (in dollars per share) | $ 8.55
Options Outstanding |
Number Outstanding (in shares) | shares | 1,007,877
Weighted Average Remaining Contractual Life (in years) | 4 years 9 months 15 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 7.73
Options Exercisable |
Number Exercisable (in shares) | shares | 940,226
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 7.75
Exercise price range 6 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 8.73
Exercise price range, high end of range (in dollars per share) | $ 8.73
Options Outstanding |
Number Outstanding (in shares) | shares | 51,308
Weighted Average Remaining Contractual Life (in years) | 7 years 10 months 2 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 8.73
Options Exercisable |
Number Exercisable (in shares) | shares | 16,781
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 8.73
Exercise price range 7 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 8.76
Exercise price range, high end of range (in dollars per share) | $ 8.76
Options Outstanding |
Number Outstanding (in shares) | shares | 1,291,345
Weighted Average Remaining Contractual Life (in years) | 7 years 7 months 28 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 8.76
Options Exercisable |
Number Exercisable (in shares) | shares | 536,793
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 8.76
Exercise price range 8 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 9.18
Exercise price range, high end of range (in dollars per share) | $ 12.30
Options Outstanding |
Number Outstanding (in shares) | shares | 941,079
Weighted Average Remaining Contractual Life (in years) | 8 years 18 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 11.25
Options Exercisable |
Number Exercisable (in shares) | shares | 308,564
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 11.15
Exercise price range 9 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 12.33
Exercise price range, high end of range (in dollars per share) | $ 19.86
Options Outstanding |
Number Outstanding (in shares) | shares | 981,013
Weighted Average Remaining Contractual Life (in years) | 2 years 4 months 6 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 18.01
Options Exercisable |
Number Exercisable (in shares) | shares | 911,222
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 18.29
Exercise price range 10 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 20.93
Exercise price range, high end of range (in dollars per share) | $ 40.80
Options Outstanding |
Number Outstanding (in shares) | shares | 767,256
Weighted Average Remaining Contractual Life (in years) | 1 year 8 months 1 day
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 27.55
Options Exercisable |
Number Exercisable (in shares) | shares | 761,968
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 27.60
Exercise price range 11 |
Exercise price range |
Exercise price range, low end of range (in dollars per share) | 4.13
Exercise price range, high end of range (in dollars per share) | $ 40.80
Options Outstanding |
Number Outstanding (in shares) | shares | 8,995,017
Weighted Average Remaining Contractual Life (in years) | 5 years 4 months 28 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) | $ 10.01
Options Exercisable |
Number Exercisable (in shares) | shares | 5,638,184
Options Exercisable, Weighted Average Exercise Price (in dollars per share) | $ 11.58

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