Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation and Other Compensation Matters (Deferred Share Awards) (Details)

v3.20.4
Share-Based Compensation and Other Compensation Matters (Deferred Share Awards) (Details) - Deferred Share Awards - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Deferred Share Awards Granted (in shares or units) 10,679 3,432 13,832
Aggregate Grant Date Fair Value $ 253 $ 95 $ 388
Grant Date Fair Value Per Share (in dollars per share) $ 23.68 $ 27.60 $ 28.08
Number of common shares issued (in shares) 0 3,097 5,515
Grant date fair value (in dollars per share)   $ 26.77 $ 29.32
Aggregate Intrinsic Value   $ 86 $ 154