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Derivative Financial Instruments - Unrealized and Realized Gains (Losses) on Derivative Contracts (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Feb. 28, 2013
Nov. 30, 2013
Nov. 30, 2015
Nov. 30, 2014
Successor [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Unrealized and realized gains (losses)   $ 144,143 $ (132,124) $ (402,881)
Successor [Member] | Interest rate contracts [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Unrealized and realized gains (losses)   132,397 (37,601) (149,587)
Successor [Member] | Foreign exchange contracts [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Unrealized and realized gains (losses)   5,514 36,101 39,872
Successor [Member] | Equity contracts [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Unrealized and realized gains (losses)   (21,216) (137,636) (327,978)
Successor [Member] | Commodity contracts [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Unrealized and realized gains (losses)   45,546 21,409 58,746
Successor [Member] | Credit contracts [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Unrealized and realized gains (losses)   $ (18,098) $ (14,397) $ (23,934)
Predecessor [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Unrealized and realized gains (losses) $ 52,864      
Predecessor [Member] | Interest rate contracts [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Unrealized and realized gains (losses) 45,875      
Predecessor [Member] | Foreign exchange contracts [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Unrealized and realized gains (losses) 12,228      
Predecessor [Member] | Equity contracts [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Unrealized and realized gains (losses) (20,938)      
Predecessor [Member] | Commodity contracts [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Unrealized and realized gains (losses) 19,585      
Predecessor [Member] | Credit contracts [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Unrealized and realized gains (losses) $ (3,886)