XML 119 R107.htm IDEA: XBRL DOCUMENT v3.21.1
Stockholders' Equity Performance Awards Assumptions (Details) - shares
3 Months Ended 12 Months Ended
Feb. 19, 2020
Mar. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected holding period (years)   5 years  
Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 237,500 27,948 368,921