v3.26.1
Goodwill and Intangible Assets - Goodwill (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Feb. 28, 2026
May 31, 2026
May 31, 2025
Nov. 30, 2025
Goodwill [Roll Forward]        
Goodwill, beginning balance $ 1,837,570 $ 1,837,570 $ 1,827,938  
Currency translation and other adjustments   3,001 12,374  
Impairment   (58,240)    
Reclassification to held for sale   (56,850)    
Measurement period adjustments     1,802  
Goodwill, ending balance   1,725,481 1,842,114  
Goodwill   1,725,500   $ 1,837,600
Investment Banking and Capital Markets        
Goodwill [Roll Forward]        
Goodwill, beginning balance 1,535,961 1,535,961 1,533,013  
Currency translation and other adjustments   886 4,457  
Impairment   0    
Reclassification to held for sale   0    
Measurement period adjustments     0  
Goodwill, ending balance   1,536,847 1,537,470  
Asset Management        
Goodwill [Roll Forward]        
Goodwill, beginning balance 301,609 301,609 294,925  
Currency translation and other adjustments   2,115 7,917  
Impairment   (58,240)    
Reclassification to held for sale   (56,850)    
Measurement period adjustments     1,802  
Goodwill, ending balance   188,634 $ 304,644  
Goodwill   143,000   143,000
Asset Management | Discontinued Operations, Held-for-Sale        
Goodwill [Roll Forward]        
Impairment $ (58,200)      
Investment banking        
Goodwill [Roll Forward]        
Goodwill   702,500   702,000
Equities and wealth management        
Goodwill [Roll Forward]        
Goodwill   256,000   255,900
Fixed income        
Goodwill [Roll Forward]        
Goodwill   578,300   578,000
Other investments        
Goodwill [Roll Forward]        
Goodwill   $ 45,700   $ 158,700