Annual report pursuant to Section 13 and 15(d)

Employee Benefits and Share Option Plans - Summary of Restricted Share Activity (Details 2)

v3.3.1.900
Employee Benefits and Share Option Plans - Summary of Restricted Share Activity (Details 2)
12 Months Ended
Dec. 31, 2015
$ / shares
shares
Time-Based Restricted Stock Awards  
Number of Restricted Share Awards  
Nonvested as of beginning of period | shares 196,644
Granted | shares 6,881
Vested | shares (83,958)
Forfeited or Expired | shares (75,914)
Non-vested as of end of period | shares 43,653
Weighted-Average Grant-Date Fair Value  
Nonvested as of beginning of period | $ / shares $ 3.43
Granted | $ / shares 50.23
Vested | $ / shares 6.68
Forfeited or Expired | $ / shares 2.68
Non-vested as of end of period | $ / shares $ 5.87
Performance-Based Restricted Stock Awards  
Number of Restricted Share Awards  
Nonvested as of beginning of period | shares 1,208,608
Granted | shares
Vested | shares (620,739)
Forfeited or Expired | shares (587,869)
Non-vested as of end of period | shares
Weighted-Average Grant-Date Fair Value  
Nonvested as of beginning of period | $ / shares $ 3.37
Granted | $ / shares
Vested | $ / shares $ 3.92
Forfeited or Expired | $ / shares $ 2.79
Non-vested as of end of period | $ / shares