Debt - Summary of Debt (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015		Feb. 23, 2015
Debt Instrument [Line Items]
Long-term Debt	$ 6,410.9	$ 6,439.1
Original issuance (discounts) premiums on debt, net	(25.3)	(25.7)
Deferred Finance Costs, Net	(100.2)	(102.9)
Total Debt	6,285.4	6,310.5	[1],[2]
Less current maturities	45.7	45.1
Non-current portion of debt	6,239.7	6,265.4
HGI [Member] | Seven Point Seven Five Percent Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	890.0	$ 890.0
Long-term debt, interest rate		7.75%
Spectrum Brands [Member] | Six Point One Two Five Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 250.0	$ 250.0
Long-term debt, interest rate	6.125%	6.10%
Spectrum Brands [Member] | Five Point Seven Five Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 1,000.0	$ 1,000.0
Long-term debt, interest rate	5.75%	5.75%
Spectrum Brands [Member] | Other notes and obligations [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 10.7	$ 11.2
Long-term debt, interest rate	10.60%	10.20%
Spectrum Brands [Member] | Capitalized lease obligations [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 93.6	$ 88.2
Long-term debt, interest rate	5.60%	5.70%
Spectrum Brands [Member] | Term Loan Due September 4, 2019 [Member]
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	2.50%
EXCO/HGI JV [Member] | Compass Credit Agreement [Member]
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	3.00%	3.00%
Salus Capital Partners L L C [Member] | Unaffiliated Long-Term Debt of Consolidated Variable-Interest-Entity [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 40.4	$ 40.4
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	0.00%	0.00%
Salus Capital Partners L L C [Member] | Secured Borrowings Related to non-qualifying participating loan interests [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 8.8	$ 8.8
Long-term debt, interest rate	10.50%	10.50%
Compass Credit Agreement [Member] | EXCO/HGI JV [Member] | Compass Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Fair Value of Amount Outstanding	$ 160.0
Revolving Credit Facility [Member] | Spectrum Brands [Member] | ABL Facility, expiring May 24, 2017 [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 230.0	$ 0.0
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	3.60%	0.00%
Secured Debt [Member] | HGI [Member] | 7.875% Senior Secured Notes, due July 15, 2019 [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 864.4	$ 864.4
Long-term debt, interest rate	7.90%	7.90%
Secured Debt [Member] | HGI [Member] | Seven Point Seven Five Percent Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Long-term debt, interest rate	7.75%
Secured Debt [Member] | Spectrum Brands [Member] | Six Point Seven Five Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt, interest rate	6.625%	6.63%
Secured Debt [Member] | Spectrum Brands [Member] | Six Point Three Seven Five Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 520.0	$ 520.0
Secured Debt [Member] | Spectrum Brands [Member] | 6.625% Notes [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 570.0	$ 570.0
Long-term debt, interest rate	6.375%	6.38%
Secured Debt [Member] | HGI Energy Holdings, LLC [Member] | 6.375% Senior Notes, Due April 1, 2021 [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 50.0	$ 50.0
Long-term debt, interest rate	9.00%	9.00%
Euro Member Countries, Euro | Secured Debt [Member] | Spectrum Brands [Member] | Euro Term Loan, Due September 4, 2019 [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 246.3	$ 255.8
United States of America, Dollars | Secured Debt [Member] | Spectrum Brands [Member] | Term Loan, Due June 23, 2022 [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 1,223.9	$ 1,226.9
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	3.50%	3.90%
United States of America, Dollars | Secured Debt [Member] | Spectrum Brands [Member] | Euro Term Loan, Due June 23, 2022 [Member]
Debt Instrument [Line Items]
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	3.50%	3.50%
Canada, Dollars | Secured Debt [Member] | Spectrum Brands [Member] | CAD Term Loan, Due June 23, 2022 [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 53.9	$ 55.7
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	4.50%	4.40%
FGL [Member] | Salus Capital Partners L L C [Member] | Unaffiliated Long-Term Debt of Consolidated Variable-Interest-Entity [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 196.5	$ 274.0
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	4.80%	3.90%
FGL [Member] | Salus Capital Partners L L C [Member] | Secured Borrowings Related to non-qualifying participating loan interests [Member]
Debt Instrument [Line Items]
Long-term Debt		$ 4.2
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate		4.50%
FGL [Member] | Salus Capital Partners L L C [Member] | Salus Promissory Note [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 2.4	$ 2.5		$ 2.5
Long-term debt, interest rate	5.30%	5.30%

[1] The carrying amounts of cash and cash equivalents, trade receivables, accounts payable and accrued investment income approximate fair value due to their short duration and, accordingly, they are not presented in the tables above.

[2] The fair values of debt set forth above are generally based on quoted or observed market prices.