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Commitments and Contingencies - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2010
Commitment And Contingencies [Line Items]      
Reserves for legal, environmental and regulatory matters $ 27,816    
Interest Rate on Senior Notes 10.625%    
Total rent expense 36,925 41,825 30,273
Notional amount of unfunded, legally binding lending commitments 63,586    
CommitmentsPartiallyAmountOfNotionalAmountOfUnfundedLegallyBindingLending 14,744    
Minimum [Member]
      
Commitment And Contingencies [Line Items]      
Lease expiration year October 2012    
Expiry date of remainder part of notional amount 1 year    
Maximum [Member]
      
Commitment And Contingencies [Line Items]      
Lease expiration year January 2023    
Expiry dated of partial amount of notional amount 1 year    
Expiry date of remainder part of notional amount 3 years    
Spectrum Brands [Member]
      
Commitment And Contingencies [Line Items]      
Environmental Costs Recognized, Capitalized 5,432    
FGL [Member]
      
Commitment And Contingencies [Line Items]      
Accrued amount of guaranty fund assessments 5,909    
Estimated future premium tax deductions 4,213    
Benefit expense, net of reinsurance, to increase reserves to cover potential benefits payable $ 11,000