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Summary of Significant Accounting Policies - Rollforward of Goodwill Activity by Reportable Segments (Detail) $ in Thousands | 12 Months Ended
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Sep. 30, 2017 USD ($)
Goodwill [Roll Forward] |
Balance at September 24, 2016 | $ 2,803,100
Acquisitions | 692,400
Sale of blood screening business | (325,000)
Foreign currency and other adjustments | 700
Balance at September 30, 2017 | 3,171,200
Diagnostics |
Goodwill [Roll Forward] |
Balance at September 24, 2016 | 1,148,200
Acquisitions | 0
Sale of blood screening business | (325,000)
Foreign currency and other adjustments | (200)
Balance at September 30, 2017 | 823,000
Breast Health |
Goodwill [Roll Forward] |
Balance at September 24, 2016 | 631,800
Acquisitions | 8,900
Sale of blood screening business | 0
Foreign currency and other adjustments | 800
Balance at September 30, 2017 | 641,500
Medical Aesthetics |
Goodwill [Roll Forward] |
Balance at September 24, 2016 | 0
Acquisitions | 683,500
Sale of blood screening business | 0
Foreign currency and other adjustments | 0
Balance at September 30, 2017 | 683,500
GYN Surgical |
Goodwill [Roll Forward] |
Balance at September 24, 2016 | 1,015,000
Acquisitions | 0
Sale of blood screening business | 0
Foreign currency and other adjustments | 100
Balance at September 30, 2017 | 1,015,100
Skeletal Health |
Goodwill [Roll Forward] |
Balance at September 24, 2016 | 8,100
Acquisitions | 0
Sale of blood screening business | 0
Foreign currency and other adjustments | 0
Balance at September 30, 2017 | $ 8,100

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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