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Basis of Presentation, Significant Accounting Polices and Practicies and Recent Accounting Pronouncements (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Mar. 31, 2014
Mar. 31, 2014
Mar. 31, 2013
Nov. 01, 2013
Apr. 06, 2011
Reserve Quantities [Line Items]          
Document Period End Date   Mar. 31, 2014      
Unamortized costs exceed ceiling limitations $ 81.0 $ 81.0      
New Accounting Pronouncement Or Change In Accounting Principle, Effect of Change on Net Change in Cash Due to Operations Activities     20.2    
New Accounting Pronouncement Or Change In Accounting Principle, Effect of Change on Net Change in Cash Due to Financing Activities     (20.2)    
Statutory Accounting Practices, Change in Statutory Capital and Surplus Required as a Result of Electing New Statutory Accounting Practice       11.5  
Statutory Accounting Practices, Statutory Capital and Surplus, Unassigned Balance Netted Against Additional Paid in Capital         $ 805.8
Spectrum Brands [Member]
         
Reserve Quantities [Line Items]          
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 41.40% 41.40%      
FGL [Member]
         
Reserve Quantities [Line Items]          
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 19.60% 19.60%      
Salus Capital Partners L L C [Member]
         
Reserve Quantities [Line Items]          
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 14.30% 14.30%      
Zap Com Corporation [Member]
         
Reserve Quantities [Line Items]          
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 2.10% 2.10%      
Natural Gas [Member]
         
Reserve Quantities [Line Items]          
Average Sales Prices   3.99      
Oil [Member]
         
Reserve Quantities [Line Items]          
Average Sales Prices   98.30      
Natural Gas Liquids [Member]
         
Reserve Quantities [Line Items]          
Average Sales Prices   43.63