Annual report pursuant to Section 13 and 15(d)

Employee Benefits and Share-Based Compensation - Summary of Restricted Share Activity (Details 2)

v3.10.0.1
Employee Benefits and Share-Based Compensation - Summary of Restricted Share Activity (Details 2) - Time-Based Restricted Stock Awards
12 Months Ended
Dec. 31, 2018
$ / shares
shares
Number of Restricted Share Awards  
Non-vested as of January 1, 2018 | shares 858
Vested | shares (429)
Non-vested as of December 31, 2018 | shares 429
Weighted-Average Grant-Date Fair Value  
Non-vested as of January 1, 2018 | $ / shares $ 58.33
Vested | $ / shares 58.25
Non-vested as of December 31, 2018 | $ / shares $ 58.41