Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation (Details)

v3.20.4
Share-Based Compensation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock based compensation expense $ 10,056 $ 7,755
Restricted Stock [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock based compensation expense 4,719 6,496
Unrestricted Stock [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock based compensation expense   418
Stock Options [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock based compensation expense 905 $ 841
DSUs [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock based compensation expense 984  
Pool A awards [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock based compensation expense 2,328  
Pool B Awards [Member]    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Stock based compensation expense $ 1,120