Revenues from Contracts with Customers - Schedule of Components of Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
May 31, 2022
May 31, 2021
May 31, 2022
May 31, 2021
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers $ 1,132,957 $ 1,492,353 $ 2,539,999 $ 2,924,996
Other sources of revenue 485,190 673,976 1,020,948 1,944,921
Total revenues 1,618,147 2,166,329 3,560,947 4,869,917
Commissions and other fees        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers 254,706 222,624 484,022 459,393
Total revenues 254,706 222,624 484,022 459,393
Investment banking        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers 600,859 1,000,700 1,545,907 2,004,312
Total revenues 600,859 1,000,700 1,545,907 2,004,312
Other        
Disaggregation of Revenue [Line Items]        
Revenue from contracts with customers 277,392 269,029 510,070 461,291
Principal transactions        
Disaggregation of Revenue [Line Items]        
Other sources of revenue 204,589 361,023 453,744 1,280,924
Total revenues 204,589 361,023 453,744 1,280,924
Interest income        
Disaggregation of Revenue [Line Items]        
Other sources of revenue 244,699 230,448 458,680 470,945
Total revenues 244,699 230,448 458,680 470,945
Other        
Disaggregation of Revenue [Line Items]        
Other sources of revenue $ 35,902 $ 82,505 $ 108,524 $ 193,052