XML 63 R52.htm IDEA: XBRL DOCUMENT v3.21.1
Compensation and Benefits - Components of expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Salaries, incentive compensation and benefits $ 128,364 $ 95,530
Restricted share-based award compensation expense 9,887 9,187
Compensation and benefits 139,465 104,717
Deferred Bonus    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Long-term cash incentive compensation expense $ 1,214 $ 0