Annual report pursuant to Section 13 and 15(d)

Equity Compensation - Summary of Weighted-Average Assumptions (Details)

v3.20.4
Equity Compensation - Summary of Weighted-Average Assumptions (Details) - Stock Option
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Roll Forward]      
Risk-free Interest Rate 0.00%    
Dividend Yield 0.00% 0.00% 0.00%
Volatility Factor 0.00% 39.00% 39.00%
Expected Life in Years   0 years  
Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Roll Forward]      
Risk-free Interest Rate   1.67% 2.63%
Expected Life in Years   5 years 5 years
Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Roll Forward]      
Risk-free Interest Rate   1.78% 2.87%
Expected Life in Years   7 years 8 years