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

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

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Equity (Summary of RSUs and PSUs activity) (Details)
12 Months Ended
Dec. 31, 2019
$ / shares
shares
Number of RSUs and PSUs  
Unvested outstanding as of December 31, 2018 | shares 1,422,887
Granted | shares 1,613,282
Vested | shares (309,642)
Forfeited | shares (363,536)
Unvested outstanding as of December 31, 2019 | shares 2,362,991
Weighted Average Grant Date Fair Value  
Unvested outstanding as of December 31, 2018 | $ / shares $ 20.17
Granted | $ / shares 26.50
Vested | $ / shares 20.50
Forfeited | $ / shares 22.32
Unvested outstanding as of December 31, 2019 | $ / shares $ 24.10