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No definition available.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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No definition available.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Apr. 01, 2017	Mar. 31, 2018	Apr. 01, 2017
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Impairment of indefinite intangible assets	$ 46.0	$ 0.0	$ 46.0	$ 0.0
Goodwill impairment charge	685.7	$ 0.0	685.7	$ 0.0
Borrowed principal	1,000.0		1,000.0
Credit Agreement
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Borrowed principal	1,600.0		1,600.0
Securitization Program
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Borrowed principal	200.0		200.0
2025 Senior Notes
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair value of debt instrument	900.0		900.0
2028 Senior Notes
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair value of debt instrument	400.0		$ 400.0
In-process research and development \| Medical Aesthetics
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Impairment of indefinite intangible assets	46.0
Cynosure
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Goodwill impairment charge	$ 685.7