XML 103 R90.htm IDEA: XBRL DOCUMENT v3.21.1
Equity Awards and Instruments - Restricted Stock and Restricted Stock Units Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Restricted Stock Units (RSUs) | 2020 Incentive Award Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Grant date fair value (USD per share) $ 45.32    
Granted (in shares)   0  
Restricted Stock | 2020 Incentive Award Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) 0 0  
Performance Based Restricted Stock Units (RSUs), 2016 | Performance-Based Vesting      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Earned through dividends in period (in shares) 14 124  
Performance Based Restricted Stock Units (RSUs), 2016 | 2020 Incentive Award Plan | Performance-Based Vesting      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Delivered in period (in shares) 10,864 9,830  
Shares outstanding (in shares) 20,190   31,040
Restricted Stock And Restricted Stock Units (RSUs) | 2020 Incentive Award Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) 9,000    
Shares outstanding (in shares) 1,259,128   1,423,715
Shares withheld for tax withholding obligation (in shares) 14,869 26,511  
Share-based compensation tax withholding payment $ 708,000 $ 121,000  
Time-Based Restricted Stock and Restricted Stock Units (RSUs) | 2020 Incentive Award Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Grant date fair value (USD per share) $ 45.32    
Granted (in shares) 9,000    
Shares outstanding (in shares) 1,259,128   1,263,193
Unrecognized compensation cost, excluding options $ 18,560,000    
Cost not yet recognized, period for recognition 3 years 2 months 12 days    
Performance Based Restricted Stock And Restricted Stock Units (RSUs) | 2020 Incentive Award Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Grant date fair value (USD per share) $ 0    
Granted (in shares) 0    
Shares outstanding (in shares) 0   160,522
Unrecognized compensation cost, excluding options $ 0