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Goodwill and intangible assets - Schedule of Goodwill (Details) $ in Millions | 9 Months Ended
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Jun. 30, 2019 USD ($)
Goodwill [Roll Forward] |
Beginning balance | $ 244.2
Cumulative translation adjustment | 0.9
Ending balance | 1,062.4
Unallocated |
Goodwill [Roll Forward] |
Beginning balance | 0.0
Cumulative translation adjustment | 1.1
Ending balance | 818.4
Americas |
Goodwill [Roll Forward] |
Beginning balance | 228.4
Cumulative translation adjustment | 0.0
Ending balance | 228.4
International |
Goodwill [Roll Forward] |
Beginning balance | 15.8
Cumulative translation adjustment | (0.2)
Ending balance | 15.6
Spectrum Brands Holdings |
Goodwill [Roll Forward] |
Goodwill acquired | 547.2
Spectrum Brands Holdings | Unallocated |
Goodwill [Roll Forward] |
Goodwill acquired | 547.2
Spectrum Brands Holdings | Americas |
Goodwill [Roll Forward] |
Goodwill acquired | 0.0
Spectrum Brands Holdings | International |
Goodwill [Roll Forward] |
Goodwill acquired | 0.0
Spectrum Auto Care Acquisition |
Goodwill [Roll Forward] |
Goodwill acquired | 270.1
Cumulative translation adjustment | 0.4
Spectrum Auto Care Acquisition | Unallocated |
Goodwill [Roll Forward] |
Goodwill acquired | 270.1
Spectrum Auto Care Acquisition | Americas |
Goodwill [Roll Forward] |
Goodwill acquired | 0.0
Spectrum Auto Care Acquisition | International |
Goodwill [Roll Forward] |
Goodwill acquired | $ 0.0

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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