Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2016 |
Mar. 31, 2015 |
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| Options granted | ||
| Weighted average fair value of options granted | $ 12.52 | |
| Number of options exercised | 13,820 | 91,528 |
| Increase in equity | $ 0.1 | $ 2.0 |
| Stock option term | 10 years | |
| Vesting period | 4 years | |
| Unrecognized compensation cost | $ 27.0 | |
| Weighted average period for recognition | 2 years 10 months 24 days | |
| Restricted Stock Units (RSUs) [Member] | ||
| Options granted | 0 | |
| Unrecognized compensation cost | $ 22.1 | |
| Weighted average period for recognition | 2 years 4 months 24 days | |
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- Definition Unrecognized cost of unvested share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Net number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The increase (decrease) in stockholders' equity during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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