v3.26.3
Revenues from Contracts with Customers - Components of Revenue (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Aug. 31, 2026
Aug. 31, 2025
Aug. 31, 2026
Aug. 31, 2025
Disaggregation of Revenue [Line Items]        
Revenues from contracts with customers $ 1,751,808 $ 1,504,162 $ 4,882,268 $ 3,875,528
Revenues 3,230,798 2,907,674 9,220,260 7,874,853
Investment banking        
Disaggregation of Revenue [Line Items]        
Revenues from contracts with customers 1,300,443 1,086,307 3,520,393 2,597,559
Revenues 1,303,833 1,088,197 3,531,742 2,606,976
Commissions and other fees        
Disaggregation of Revenue [Line Items]        
Revenues from contracts with customers 386,968 319,784 1,138,899 951,933
Revenues 392,932 325,178 1,161,150 966,711
Asset management fees        
Disaggregation of Revenue [Line Items]        
Revenues from contracts with customers 2,156 8,236 12,648 61,539
Revenues 9,869 13,079 87,019 118,563
Real estate revenues        
Disaggregation of Revenue [Line Items]        
Revenues from contracts with customers 8,847 16,621 13,388 43,913
Internet connection and broadband revenues        
Disaggregation of Revenue [Line Items]        
Revenues from contracts with customers 35,524 56,598 142,038 171,069
Other contracts with customers        
Disaggregation of Revenue [Line Items]        
Revenues from contracts with customers 17,870 16,616 54,902 49,515
Revenues 132,510 147,433 405,450 379,883
Principal transactions        
Disaggregation of Revenue [Line Items]        
Revenues not from contracts with customers 468,655 486,893 1,444,819 1,232,630
Revenues 468,655 486,893 1,444,819 1,232,630
Revenues from strategic affiliates        
Disaggregation of Revenue [Line Items]        
Revenues not from contracts with customers 15,883 11,933 104,250 76,582
Interest        
Disaggregation of Revenue [Line Items]        
Revenues not from contracts with customers 922,999 846,894 2,590,080 2,570,090
Revenues 922,999 846,894 2,590,080 2,570,090
Other        
Disaggregation of Revenue [Line Items]        
Revenues not from contracts with customers $ 71,453 $ 57,792 $ 198,843 $ 120,023