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Basis of Presentation and Significant Accounting Policies - Schedule of Allowance for Credit Loss (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Aug. 31, 2022
Aug. 31, 2021
Aug. 31, 2022
Aug. 31, 2021
May 31, 2022
Nov. 30, 2021
May 31, 2021
Nov. 30, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward]                
Beginning balance $ 91,059 $ 76,629 $ 91,059 $ 76,629 $ 86,025 $ 75,999 $ 79,254 $ 53,926
Provision for doubtful accounts 12,820 (848) 31,246 48,091        
Charge-offs, net of recoveries (7,057) (1,777) (15,457) (51,907)        
Sale of subsidiary (729) 0 (729) 0        
Ending balance $ 91,059 $ 76,629 $ 91,059 76,629        
Prime Brokerage                
Accounts Receivable, Allowance for Credit Loss [Roll Forward]                
Provision for doubtful accounts       $ 39,000        
Adjustment for change in accounting principle for current expected credit losses                
Accounts Receivable, Allowance for Credit Loss [Roll Forward]                
Beginning balance         $ 0 $ 0 $ 0 $ 26,519