Annual report pursuant to Section 13 and 15(d)

Stock Compensation (Schedule of Restricted Stock Unit Activity) (Details)

v3.20.4
Stock Compensation (Schedule of Restricted Stock Unit Activity) (Details) - USD ($)
$ 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]      
Common shares issued upon vesting 27,488,547 27,440,953  
Cash paid for taxes in lieu of shares upon vesting of RSU's $ 4,216 $ 6,350 $ 4,981
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Restricted share unit expense $ 4,475 $ 3,196 $ 3,727
Common shares issued upon vesting 43,458 55,267 62,500
Fair value of vested shares on vesting date $ 10,350 $ 15,078 $ 12,127