Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Stock Options (Schedule of Stock Option Activity) (Details)

v2.4.0.8
Stock Options (Schedule of Stock Option Activity) (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
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
Minimum [Member]
     
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
Maximum [Member]
     
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