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

Equity (Schedule of Stock Option Activity) (Details)

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Equity (Schedule of Stock Option Activity) (Details)
12 Months Ended
Dec. 31, 2019
$ / shares
shares
Number of Options  
Options Outstanding as of December 31, 2018 | shares 2,551,743
Exercised | shares (249,956)
Forfeited | shares (340,255)
Options Outstanding as of December 31, 2019 | shares 1,961,532
Options exercisable as of December 31, 2019 | shares 1,585,035
Weighted Average Exercise Price  
Options Outstanding as of December 31, 2018 | $ / shares $ 30.82
Exercised | $ / shares 20.54
Forfeited | $ / shares 36.43
Options Outstanding as of December 31, 2019 | $ / shares 31.16
Options exercisable as of December 31, 2019 | $ / shares $ 33.73