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Stock Options (Schedule of Stock Option Activity) (Details) (USD $)
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12 Months Ended | ||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Number of Options Outstanding | |||
| Shares under option | 3,315,917 | 1,037,267 | 1,182,650 |
| Granted | 388,131 | 336,750 | 325,000 |
| Objet options from merger | 77,631 | 3,286,909 | |
| Exercised | (1,741,953) | (1,322,047) | 423,783 |
| Expired | 3,000 | ||
| Forfeited | 32,293 | 22,962 | 43,600 |
| Shares under option | 2,007,433 | 3,315,917 | 1,037,267 |
| Weighted Average Exercise Price | |||
| Shares under option | $ 11.84 | $ 18.59 | $ 15.16 |
| Granted | $ 86.22 | $ 46.87 | $ 25.42 |
| Objet options from merger | $ 4.76 | $ 6.10 | |
| Exercised | $ 7.18 | $ 11.50 | $ 14.61 |
| Expired | $ 12.49 | ||
| Forfeited | $ 30.40 | $ 31.05 | $ 16.08 |
| Shares under option | $ 29.66 | $ 11.84 | $ 18.59 |
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Minimum [Member]
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| Weighted Average Exercise Price | |||
| Shares under option | $ 2.21 | $ 9.30 | $ 8.27 |
| Granted | $ 74.95 | $ 46.87 | $ 21.08 |
| Objet options from merger | $ 2.74 | $ 2.21 | |
| Exercised | $ 2.21 | $ 2.21 | $ 8.27 |
| Expired | $ 12.49 | ||
| Forfeited | $ 2.74 | $ 9.30 | $ 9.30 |
| Shares under option | $ 2.21 | $ 2.21 | $ 9.30 |
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Maximum [Member]
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| Weighted Average Exercise Price | |||
| Shares under option | $ 46.87 | $ 33.06 | $ 33.06 |
| Granted | $ 120.51 | $ 46.87 | $ 25.95 |
| Objet options from merger | $ 7.30 | $ 15.64 | |
| Exercised | $ 74.95 | $ 33.06 | $ 24.65 |
| Expired | $ 12.49 | ||
| Forfeited | $ 91.56 | $ 46.87 | $ 25.50 |
| Shares under option | $ 120.51 | $ 46.87 | $ 33.06 |
| X | ||||||||||
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- Definition
Number of options or other stock instruments from merger during the period. No definition available.
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| X | ||||||||||
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- Definition
Weighted average exercise price per share of options or other stock instruments from merger during the period. No definition available.
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| X | ||||||||||
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- Definition
Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Gross number of share options (or share units) granted during the period. No definition available.
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| X | ||||||||||
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- Definition
Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
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| X | ||||||||||
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- Definition
Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired. No definition available.
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| X | ||||||||||
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- Definition
Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
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| X | ||||||||||
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- Definition
Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
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| X | ||||||||||
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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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