XML 80 R66.htm IDEA: XBRL DOCUMENT v3.20.4
Stockholders' Equity and Employee Benefit Plans - 401(k) Plan - Additional Information (Details) - United States - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Defined Contribution Plan Disclosure [Line Items]      
Matching contribution of deferrals for eligible employees 25.00%    
Matching contribution compensation expense $ 4.2 $ 3.0 $ 2.3