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Business Combinations - Additional Information (Detail) (USD $) | 3 Months Ended | 12 Months Ended | 0 Months Ended | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  | 12 Months Ended
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Sep. 27, 2014 | Mar. 30, 2013 | Sep. 27, 2014 | Sep. 28, 2013 | Sep. 29, 2012 | Dec. 31, 2012 Chindex Medical Limited [Member] | May 31, 2013 SenoRx, Inc [Member] | Aug. 01, 2012 Gen-Probe Incorporated [Member] | Jun. 29, 2013 Gen-Probe Incorporated [Member] | Mar. 30, 2013 Gen-Probe Incorporated [Member] | Dec. 29, 2012 Gen-Probe Incorporated [Member] | Sep. 27, 2014 Gen-Probe Incorporated [Member] project | Sep. 28, 2013 Gen-Probe Incorporated [Member] | Sep. 29, 2012 Gen-Probe Incorporated [Member] project | Jan. 03, 2013 Gen-Probe Incorporated [Member] | Sep. 28, 2013 Gen-Probe Incorporated [Member] Minimum [Member] | Sep. 28, 2013 Gen-Probe Incorporated [Member] Maximum [Member] | Sep. 27, 2014 Gen-Probe Incorporated [Member] Property, Plant and Equipment [Member] | Sep. 27, 2014 Gen-Probe Incorporated [Member] Land and Buildings [Member] | Sep. 27, 2014 Developed Technology [Member] Gen-Probe Incorporated [Member] | Sep. 27, 2014 Customer Contract [Member] Gen-Probe Incorporated [Member] | Sep. 27, 2014 Trade Names [Member] Gen-Probe Incorporated [Member]
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net purchase price |  |  |  |  |  | $ 4,400,000 | $ 2,400,000 | $ 3,972,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash paid per share |  |  |  |  |  |  |  | $ 82.75 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount paid to shareholders |  |  |  |  |  |  |  | 3,800,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount paid to equity award holders |  |  |  |  |  |  |  | 169,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net debt obtained by the Company to finance the acquisition |  |  |  |  |  |  |  | 3,480,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct transaction costs incurred |  |  |  |  |  |  |  | 34,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Remaining fair value of stock options assumed to be recognized as compensation expense |  |  |  |  |  |  |  |  |  |  |  | 23,200,000 |  |  |  |  |  |  |  |  |  |
Vesting period |  |  | 3 years |  |  |  |  |  |  |  |  | 3 years 6 months |  |  |  |  |  |  |  |  |  |
Risk free interest rate |  |  | 1.20% | 0.50% | 0.70% |  |  |  |  |  |  | 0.41% |  |  |  |  |  |  |  |  |  |
Expected volatility |  |  |  |  |  |  |  |  |  |  |  | 39.90% |  |  |  |  |  |  |  |  |  |
Expected life |  |  |  |  |  |  |  |  |  |  |  | 3 years 7 months 6 days |  |  |  |  |  |  |  |  |  |
Dividend yield, rate |  |  |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |  |  |  |  |  |  |
Weighted average fair value of stock options, per share |  |  |  |  |  |  |  |  |  |  |  | $ 7.07 |  |  |  |  |  |  |  |  |  |
Increase in developed technology |  |  |  |  |  |  |  |  |  |  |  |  | 135,000,000 |  |  |  |  |  |  |  |  |
Reduction in process research and development |  |  |  |  |  |  |  |  |  |  |  |  | 110,000,000 |  |  |  |  |  |  |  |  |
Adjustment to valuation of intangibles |  |  |  |  |  |  |  |  |  |  |  |  | 2,000,000 |  |  |  |  |  |  |  |  |
Agreement to sell LIFECODES business to Immucor |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 85,000,000 |  |  |  |  |  |  |
Contingent payment of an additional amount based on future revenue results |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,000,000 |  |  |  |  |  |  |
Gain on the sale of LIFECODES business | 5,300,000 | 900,000 | (5,500,000) | 0 | 0 |  |  |  |  | 900,000 |  |  |  |  |  |  |  |  |  |  |  |
Assets held-for-sale |  |  |  |  |  |  |  |  | 2,800,000 |  | 2,800,000 |  |  |  |  |  |  |  |  |  |  |
Discount rate used for cash flow projections |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.00% | 12.00% |  |  |  |  |
In-process research and development |  |  |  |  |  |  |  | 117,000,000 |  |  |  |  | 117,000,000 |  |  |  |  |  |  |  |  |
IPR&D Projects |  |  |  |  |  |  |  |  |  |  |  | 4 |  | 6 |  |  |  |  |  |  |  |
In-process research and development, value |  |  |  |  |  |  |  |  |  |  |  | 94,000,000 |  |  |  |  |  |  |  |  |  |
Discount rate |  |  |  |  |  |  |  |  |  |  |  | 12.00% |  |  |  |  |  |  |  |  |  |
Expected number of years for project completion |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |
Finite-lived intangible assets, estimated useful life, years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13 years 4 months 24 days | 13 years | 11 years
Fair value adjustment to increase the carrying amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 107,900,000 | 70,600,000 |  |  |
Revenue earned by Gen-Probe post-acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  | 89,500,000 |  |  |  |  |  |  |  |
Pre-tax income (loss) from Gen-Probe post-acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  | 47,700,000 |  |  |  |  |  |  |  |
Cash paid |  |  |  |  |  |  |  | 3,967,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
The excess of the purchase price over the fair value recorded to goodwill | $ 2,810,800,000 |  | $ 2,810,800,000 | $ 2,814,500,000 |  |  |  | $ 1,641,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The amount of acquisition cost of a business combination allocated to the fair value of in-process research and development. + References No definition available. + Details
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- Definition Represents the cash paid to the shareholders of the acquired entity to acquire 100% of the outstanding common stock, and equity awards (less the respective exercise price of stock options, as applicable) pursuant to the terms of the acquisition agreement. + References No definition available. + Details
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- Definition Represents the value of an in-process research and development project recorded as an asset in an acquisition that was completed and will be transferred to developed technology and amortized over its estimated useful life. + References No definition available. + Details
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- Definition Expected weighted average term of share-based compensation awards, 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 of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition. + References No definition available. + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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- Definition Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment. + References No definition available. + Details
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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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