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Derivative Financial Instruments - Additional Information (Detail) | 12 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2017 USD ($) ozt | Sep. 30, 2016 USD ($) ozt | Sep. 30, 2015 USD ($) | Sep. 30, 2014 USD ($) | Sep. 30, 2012 USD ($)
Derivative Financial Instruments [Line Items] |  |  |  |  |
Unrealized Gain (Loss) on Derivatives | $ 8,900,000 |  |  |  |
Document Period End Date | Sep. 30, 2017 |  |  |  |
Long-term debt | $ 5,870,900,000 | $ 5,635,600,000 |  |  |
Spectrum Brands [Member] |  |  |  |  |
Derivative Financial Instruments [Line Items] |  |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | 10,800,000 | 1,100,000 | $ 27,500,000 |  |
Spectrum Brands [Member] | Standby Letters of Credit |  |  |  |  |
Derivative Financial Instruments [Line Items] |  |  |  |  |
Letters of Credit Outstanding, Amount |  |  |  | $ 0 | $ 0
Spectrum Brands [Member] | Interest Rate Contract [Member] |  |  |  |  |
Derivative Financial Instruments [Line Items] |  |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | $ 300,000 |  |  |  |
Derivative, Fixed Interest Rate | 0.00% |  |  |  |
Derivative, Notional Amount | $ 300,000,000 | $ 300,000,000 |  |  |
Derivative, Remaining Maturity | 2 years 7 months | 6 months |  |  |
Spectrum Brands [Member] | Foreign exchange contracts |  |  |  |  |
Derivative Financial Instruments [Line Items] |  |  |  |  |
Accumulated Other Comprehensive Income Loss Cumulative Gain Loss From Derivative Instrument Before Tax | $ 6,300,000 |  |  |  |
Derivative Contracts Market Value | 360,800,000 | $ 224,800,000 |  |  |
Spectrum Brands [Member] | Foreign exchange forward agreements |  |  |  |  |
Derivative Financial Instruments [Line Items] |  |  |  |  |
Derivative Contracts Market Value | 205,700,000 | 131,400,000 |  |  |
Spectrum Brands [Member] | Zinc Commodity Swap Contract [Member] |  |  |  |  |
Derivative Financial Instruments [Line Items] |  |  |  |  |
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net | 1,300,000 |  |  |  |
Derivative Contracts Market Value | $ 20,700,000 | $ 12,800,000 |  |  |
Spectrum Brands [Member] | ERROR in label resolution. |  |  |  |  |
Derivative Financial Instruments [Line Items] |  |  |  |  |
Derivative, Nonmonetary Notional Amount | ozt | 20.9 | 31.0 |  |  |
Derivative Contracts Market Value | $ 400,000 | $ 600,000 |  |  |
Spectrum Brands [Member] | Bronze Commodity Contract [Member] |  |  |  |  |
Derivative Financial Instruments [Line Items] |  |  |  |  |
Derivative Contracts Market Value | 6,600,000 | 4,000,000 |  |  |
Salus Capital Partners LLC |  |  |  |  |
Derivative Financial Instruments [Line Items] |  |  |  |  |
Long-term debt | 22,200,000 | 30,300,000 |  |  |
Derivatives not designated as hedging instrument |  |  |  |  |
Derivative Financial Instruments [Line Items] |  |  |  |  |
Derivative Asset, Fair Value, Gross Asset | $ 4,500,000 | $ 8,700,000 |  |  |

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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. + References No definition available. + Details
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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226000-175313 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=64830801&loc=SL51823488-111719 + Details
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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624177-113959 + Details
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- Definition Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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