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Stock-Based Compensation - Ranges of Outstanding and Exercisable Options (Details) - Options shares in Thousands | 12 Months Ended
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Dec. 31, 2016 $ / shares shares
Options Outstanding |
Vested and expected to vest, Number Outstanding | shares | 522
Vested and expected to vest, Weighted Average Remaining Contractual Life (in Years) | 7 years 9 months 26 days
Vested and expected to vest, Weighted Average Exercise Price | $ 14.34
Exercisable, Number Outstanding | shares | 177
Exercisable, Weighted Average Remaining Contractual Life | 5 years 4 months 17 days
Exercisable, Weighted Average Exercise Price | $ 25.83
$3.80 - $7.19 |
Exercise price range |
Lower range limit (in dollars per share) | 3.80
Upper range limit (in dollars per share) | $ 7.19
Options Outstanding |
Number Outstanding (in shares) | shares | 45
Weighted Average Remaining Contractual Life | 8 years 8 months 5 days
Weighted Average Exercise Price (in dollars per share) | $ 5.12
Options Exercisable |
Number Exercisable (in shares) | shares | 8
Weighted Average Exercise Price (in dollars per share) | $ 5.30
$7.20 - $16.99 |
Exercise price range |
Lower range limit (in dollars per share) | 7.20
Upper range limit (in dollars per share) | $ 16.99
Options Outstanding |
Number Outstanding (in shares) | shares | 325
Weighted Average Remaining Contractual Life | 9 years 4 months 21 days
Weighted Average Exercise Price (in dollars per share) | $ 7.20
Options Exercisable |
Number Exercisable (in shares) | shares | 36
Weighted Average Exercise Price (in dollars per share) | $ 7.20
$17.00 - $30.99 |
Exercise price range |
Lower range limit (in dollars per share) | 17.00
Upper range limit (in dollars per share) | $ 30.99
Options Outstanding |
Number Outstanding (in shares) | shares | 84
Weighted Average Remaining Contractual Life | 6 years 3 months 29 days
Weighted Average Exercise Price (in dollars per share) | $ 22.39
Options Exercisable |
Number Exercisable (in shares) | shares | 66
Weighted Average Exercise Price (in dollars per share) | $ 22.92
$31-00 - $54.29 |
Exercise price range |
Upper range limit (in dollars per share) | $ 54.29
Options Outstanding |
Number Outstanding (in shares) | shares | 58
Weighted Average Remaining Contractual Life | 2 years 8 months 19 days
Weighted Average Exercise Price (in dollars per share) | $ 38.41
Options Exercisable |
Number Exercisable (in shares) | shares | 57
Weighted Average Exercise Price (in dollars per share) | $ 38.32
$54.30 - $61.09 |
Exercise price range |
Lower range limit (in dollars per share) | 54.30
Upper range limit (in dollars per share) | $ 61.09
Options Outstanding |
Number Outstanding (in shares) | shares | 6
Weighted Average Remaining Contractual Life | 6 months
Weighted Average Exercise Price (in dollars per share) | $ 54.30
Options Exercisable |
Number Exercisable (in shares) | shares | 6
Weighted Average Exercise Price (in dollars per share) | $ 54.30
$61.10 - $61.10 |
Exercise price range |
Lower range limit (in dollars per share) | 61.10
Upper range limit (in dollars per share) | $ 61.10
Options Outstanding |
Number Outstanding (in shares) | shares | 4
Weighted Average Remaining Contractual Life | 3 months 26 days
Weighted Average Exercise Price (in dollars per share) | $ 61.10
Options Exercisable |
Number Exercisable (in shares) | shares | 4
Weighted Average Exercise Price (in dollars per share) | $ 61.10
$3.80 - $61.10 |
Exercise price range |
Lower range limit (in dollars per share) | 3.80
Upper range limit (in dollars per share) | $ 61.10
Options Outstanding |
Number Outstanding (in shares) | shares | 522
Weighted Average Remaining Contractual Life | 7 years 9 months 26 days
Weighted Average Exercise Price (in dollars per share) | $ 13.88
Options Exercisable |
Number Exercisable (in shares) | shares | 177
Weighted Average Exercise Price (in dollars per share) | $ 25.83

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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