Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

Equity (Summary of RSUs and PSUs Activity) (Details)

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Equity (Summary of RSUs and PSUs Activity) (Details) - RSUs and PSUs [Member]
9 Months Ended
Sep. 30, 2019
$ / shares
shares
Number of RSUs and PSUs  
Unvested as of January 1, 2019 | shares 1,422,887
Granted | shares 1,564,182
Vested | shares (304,408)
Forfeited | shares (251,574)
Unvested as of September 30, 2019 | shares 2,431,087
Weighted Average Grant Date Fair Value  
Unvested as of January 1, 2019 | $ / shares $ 20.17
Granted | $ / shares 26.61
Vested | $ / shares 20.47
Forfeited | $ / shares 22.19
Unvested as of September 30, 2019 | $ / shares $ 24.07