v3.26.1
Total Equity - Accumulated Other Comprehensive Income (Loss) Reclassifications (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
May 31, 2026
May 31, 2025
May 31, 2026
May 31, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Revenues $ 3,118,197 $ 2,494,315 $ 5,989,462 $ 4,967,179
Compensation and benefits (1,188,245) (854,839) (2,274,135) (1,695,966)
Net earnings 249,978 91,395 409,324 228,244
Income tax expense 65,571 43,506 118,441 57,722
Principal transactions        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Revenues 488,666 338,507 976,164 745,737
Amount Reclassified from Accumulated Other Comprehensive Income (Loss)        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Net earnings 2,327 5,054 5,479 6,832
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Net unrealized gains on instrument-specific credit risk at fair value        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Income tax expense 800 1,800 1,800 2,600
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Net unrealized gains on instrument-specific credit risk at fair value | Principal transactions        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Revenues 2,483 5,121 5,790 7,658
Amount Reclassified from Accumulated Other Comprehensive Income (Loss) | Amortization of defined benefit pension plan actuarial losses        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Compensation and benefits $ (156) $ (67) (311) (826)
Income tax expense     $ (100) $ (300)