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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2015
Stock-Based Compensation |
Information on stock options issued under the plans |
|  | Number of Option Shares |  | Weighted-Average Exercise Price |  | Weighted- Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (in thousands) |
Outstanding at December 31, 2014 |  |  | 6,633,622 |  | $ | 8.12 |  |  |  |  |  |  |
Granted |  |  | 1,752,833 |  |  | 13.50 |  |  |  |  |  |  |
Exercised |  |  | (1,931,946 | ) |  | 6.76 |  |  |  |  |  |  |
Canceled |  |  | (72,933 | ) |  | 11.64 |  |  |  |  |  |  |
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Outstanding at December 31, 2015 |  |  | 6,381,576 |  | $ | 9.97 |  |  | 3.57 |  | $ | 40,029 |
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Information about stock options outstanding, by exercise price range | The following table summarizes information about stock options outstanding at December 31, 2015:
|  | Exercise Price Range |  | Total |
|  | $6.34 to $9.52 |  | $9.53 to $14.36 |  | $14.41 to $18.61 |  | $6.34 to $18.61 |
Outstanding options |  |  |  |  |  |  |  |  |  |  |  |  |
Number outstanding |  |  | 3,330,058 |  |  | 2,878,346 |  |  | 173,172 |  |  | 6,381,576 |
Weighted-average remaining contractual life (years) |  |  | 2.18 |  |  | 5.01 |  |  | 6.38 |  |  | 3.57 |
Weighted-average exercise price |  | $ | 7.71 |  | $ | 12.20 |  | $ | 16.34 |  | $ | 9.97 |
Exercisable options |  |  |  |  |  |  |  |  |  |  |  |  |
Number outstanding |  |  | 3,083,777 |  |  | 654,480 |  |  | 1,000 |  |  | 3,739,257 |
Weighted-average exercise price |  | $ | 7.62 |  | $ | 10.52 |  | $ | 14.41 |  | $ | 8.13 |
Information on restricted stock awards issued under the plans |
|  | Number of Award Shares |
Outstanding at December 31, 2014 |  |  | 132,497 |
Awarded |  |  | 57,406 |
Released |  |  | (47,502 | )
Canceled |  |  | (15,405 | )
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Outstanding at December 31, 2015 |  |  | 126,996 |
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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