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Summary of Significant Accounting Policies - Rollforward of Goodwill Activity by Reportable Segments (Detail) | 12 Months Ended
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Sep. 28, 2019 USD ($)
Goodwill [Roll Forward] |
Balance at September 29, 2018 | $ 2,533,200,000
Foreign currency and other adjustments | (4,500,000)
Balance at September 28, 2019 | 2,563,700,000
Diagnostics |
Goodwill [Roll Forward] |
Balance at September 29, 2018 | 821,200,000
Foreign currency and other adjustments | (2,000,000.0)
Balance at September 28, 2019 | 819,200,000
Breast Health |
Goodwill [Roll Forward] |
Balance at September 29, 2018 | 689,500,000
Foreign currency and other adjustments | (2,300,000)
Balance at September 28, 2019 | 722,200,000
Medical Aesthetics |
Goodwill [Roll Forward] |
Balance at September 29, 2018 | 0
Foreign currency and other adjustments | 0
Balance at September 28, 2019 | 0
GYN Surgical |
Goodwill [Roll Forward] |
Balance at September 29, 2018 | 1,014,400,000
Foreign currency and other adjustments | (200,000)
Balance at September 28, 2019 | 1,014,200,000
Skeletal Health |
Goodwill [Roll Forward] |
Balance at September 29, 2018 | 8,100,000
Foreign currency and other adjustments | 0
Balance at September 28, 2019 | 8,100,000
Faxitron |
Goodwill [Roll Forward] |
Faxitron acquisition adjustment | 3,900,000
Faxitron | Diagnostics |
Goodwill [Roll Forward] |
Faxitron acquisition adjustment | 0
Faxitron | Breast Health |
Goodwill [Roll Forward] |
Faxitron acquisition adjustment | 3,900,000
Faxitron | Medical Aesthetics |
Goodwill [Roll Forward] |
Faxitron acquisition adjustment | 0
Faxitron | GYN Surgical |
Goodwill [Roll Forward] |
Faxitron acquisition adjustment | 0
Faxitron | Skeletal Health |
Goodwill [Roll Forward] |
Faxitron acquisition adjustment | 0
Focal |
Goodwill [Roll Forward] |
Faxitron acquisition adjustment | 31,100,000
Focal | Diagnostics |
Goodwill [Roll Forward] |
Faxitron acquisition adjustment | 0
Focal | Breast Health |
Goodwill [Roll Forward] |
Faxitron acquisition adjustment | 31,100,000
Focal | Medical Aesthetics |
Goodwill [Roll Forward] |
Faxitron acquisition adjustment | 0
Focal | GYN Surgical |
Goodwill [Roll Forward] |
Faxitron acquisition adjustment | 0
Focal | Skeletal Health |
Goodwill [Roll Forward] |
Faxitron acquisition adjustment | $ 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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