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Organization and Basis of Presentation (Detail)
€ in Millions
3 Months Ended
Feb. 28, 2018
USD ($)
segment
Feb. 28, 2017
USD ($)
Dec. 28, 2017
EUR (€)
Dec. 28, 2017
USD ($)
Debt Instrument [Line Items]        
Number of operating segments | segment 2      
Proceeds from short-term borrowings $ 275,000,000 $ 0    
Payments on short-term borrowings $ 248,323,000 107,113,000    
Changes to presentation of Consolidated Statements of Cash Flows        
Debt Instrument [Line Items]        
Proceeds from short-term borrowings   (9,682,600,000)    
Payments on short-term borrowings   $ 9,682,600,000    
German Pension Plan        
Debt Instrument [Line Items]        
Consideration for release of indemnity relating to pension obligations       $ 3,250,000
German Pension Plan | Jefferies Bache Limited        
Debt Instrument [Line Items]        
Payment to transfer defined benefit obligation and insurance contracts | €     € 6.5  
3.875% Convertible Senior Debentures        
Debt Instrument [Line Items]        
Debt instrument interest rate 3.875%      
Debt principal amount $ 345,000,000.0