Debt - Summary of Debt (Detail) (USD $)	9 Months Ended		9 Months Ended																																	9 Months Ended
	Jun. 30, 2013	Sep. 30, 2012	Jun. 30, 2013 HGI [Member]	Jul. 23, 2013 HGI [Member] 7.875% Senior Secured Notes, due July 15, 2019 [Member]	Jun. 30, 2013 HGI [Member] 7.875% Senior Secured Notes, due July 15, 2019 [Member]	Dec. 30, 2012 HGI [Member] 7.875% Senior Secured Notes, due July 15, 2019 [Member]	Sep. 30, 2012 HGI [Member] 7.875% Senior Secured Notes, due July 15, 2019 [Member]	Jun. 30, 2013 HGI [Member] 10.625% Senior Secured Notes, due November 15, 2015 [Member]	Dec. 30, 2012 HGI [Member] 10.625% Senior Secured Notes, due November 15, 2015 [Member]	Sep. 30, 2012 HGI [Member] 10.625% Senior Secured Notes, due November 15, 2015 [Member]	Jun. 30, 2013 Spectrum Brands [Member] Term Loan, due December 17, 2019 [Member]	Sep. 30, 2012 Spectrum Brands [Member] Term Loan, due December 17, 2019 [Member]	Jun. 30, 2013 Spectrum Brands [Member] Previous Term Loan Facility [Member]	Dec. 30, 2012 Spectrum Brands [Member] Previous Term Loan Facility [Member]	Sep. 30, 2012 Spectrum Brands [Member] Previous Term Loan Facility [Member]	Jun. 30, 2013 Spectrum Brands [Member] 9.5% Senior Secured Notes, due June 15, 2018 [Member]	Sep. 30, 2012 Spectrum Brands [Member] 9.5% Senior Secured Notes, due June 15, 2018 [Member]	Jun. 30, 2013 Spectrum Brands [Member] 6.75% Senior Notes, due March 15, 2020 [Member]	Sep. 30, 2012 Spectrum Brands [Member] 6.75% Senior Notes, due March 15, 2020 [Member]	Jun. 30, 2013 Spectrum Brands [Member] Six Point Three Seven Five Senior Notes [Member]	Sep. 30, 2012 Spectrum Brands [Member] Six Point Three Seven Five Senior Notes [Member]	Jun. 30, 2013 Spectrum Brands [Member] 6.625% Notes [Member]	Sep. 30, 2012 Spectrum Brands [Member] 6.625% Notes [Member]	Jun. 30, 2013 Spectrum Brands [Member] ABL Facility, expiring May 24, 2017 [Member]	Sep. 30, 2012 Spectrum Brands [Member] ABL Facility, expiring May 24, 2017 [Member]	Jun. 30, 2013 Spectrum Brands [Member] Other notes and obligations [Member]	Sep. 30, 2012 Spectrum Brands [Member] Other notes and obligations [Member]	Jun. 30, 2013 Spectrum Brands [Member] Capitalized lease obligations [Member]	Sep. 30, 2012 Spectrum Brands [Member] Capitalized lease obligations [Member]	Jun. 30, 2013 FGL [Member] 6.375% Senior Notes, Due April 1, 2021 [Member]	Sep. 30, 2012 FGL [Member] 6.375% Senior Notes, Due April 1, 2021 [Member]	Jun. 30, 2013 EXCO/HGI JV [Member] EXO/HGI Partnership Credit Agreement, due February 14, 2018 [Member]	Sep. 30, 2012 EXCO/HGI JV [Member] EXO/HGI Partnership Credit Agreement, due February 14, 2018 [Member]	Jun. 30, 2013 Salus Capital Partners L L C [Member] 5.80% Unaffiliated Long-Term Debt of Consolidated Variable-Interest-Entity [Member]	Sep. 30, 2012 Salus Capital Partners L L C [Member] 5.80% Unaffiliated Long-Term Debt of Consolidated Variable-Interest-Entity [Member]	Jun. 30, 2013 Other assets [Member] 6.625% Notes [Member]	Jun. 30, 2013 Other assets [Member] 6.375% Senior Notes, Due April 1, 2021 [Member]	Jun. 30, 2013 Other assets [Member] Spectrum Brands [Member] Term Loan, due December 17, 2019 [Member]
Debt Instrument [Line Items]
Document Period End Date	Jun. 30, 2013		Jun. 30, 2013
Unamortized Debt Issuance Costs																																				$ 14,100,000	$ 12,900,000	$ 16,900,000
Long-term Debt	4,562,300,000	2,165,000,000			700,000,000.0					500,000,000	757,500,000	0	0	370,200,000	370,200,000	950,000,000	950,000,000	300,000,000	300,000,000	520,000,000	0	570,000,000	0	69,500,000	0	33,000,000	18,100,000	29,900,000	26,700,000	300,000,000				57,500,000
Original issuance (discounts) premiums on debt, net	(8,000,000)	2,000,000
Total Debt	4,554,300,000	2,167,000,000
Less current maturities	40,800,000	16,400,000
Non-current portion of debt	$ 4,513,500,000	$ 2,150,600,000
Long-term debt, interest rate				7.875%	7.875%	7.875%			10.625%	10.625%	4.60%	0.00%	0.00%		5.10%	9.50%	9.50%	6.80%	6.80%	6.375%	0.00%	6.625%	0.00%	2.10%	4.30%	8.30%	10.90%	6.20%	6.20%	6.375%		0.00%		5.80%