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Business Combination - Purchase Price Allocation (Details) - USD ($) $ in Millions | Dec. 29, 2018 | Oct. 01, 2018 | Sep. 29, 2018 | Jul. 31, 2018
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Purchase Price Allocation [Line Items] |  |  |  |
Goodwill | $ 2,562.9 |  | $ 2,533.2 |
Faxitron |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |
Cash |  |  |  | $ 2.4
Accounts receivable |  |  |  | 4.0
Inventory |  |  |  | 6.0
Other assets |  |  |  | 3.1
Accounts payable and accrued expenses |  |  |  | (4.9)
Deferred revenue |  |  |  | (1.9)
Long-term debt |  |  |  | (3.3)
Deferred income taxes, net |  |  |  | (11.5)
Goodwill |  |  |  | 42.4
Purchase Price |  |  |  | 89.5
Faxitron | Developed technology |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |
Identifiable intangible assets |  |  |  | 44.9
Faxitron | In-process research and development |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |
Identifiable intangible assets |  |  |  | 5.5
Faxitron | Customer relationships |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |
Identifiable intangible assets |  |  |  | 0.5
Faxitron | Trade names |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |
Identifiable intangible assets |  |  |  | $ 2.3
Focal Therapeutics |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |
Cash |  | $ 2.2 |  |
Accounts receivable |  | 2.0 |  |
Inventory |  | 8.3 |  |
Other assets |  | 0.8 |  |
Accounts payable and accrued expenses |  | (5.6) |  |
Long-term debt |  | (2.5) |  |
Deferred income taxes, net |  | (12.7) |  |
Goodwill |  | 30.4 |  |
Purchase Price |  | 120.1 |  |
Focal Therapeutics | Developed technology |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |
Identifiable intangible assets |  | 83.1 |  |
Focal Therapeutics | In-process research and development |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |
Identifiable intangible assets |  | 11.4 |  |
Focal Therapeutics | Trade names |  |  |  |
Purchase Price Allocation [Line Items] |  |  |  |
Identifiable intangible assets |  | $ 2.7 |  |

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount of deferred revenue expected to be recognized as such within one year or the normal operating cycle, if longer, assumed at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount of deferred tax liability attributable to taxable temporary differences assumed at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84176650&loc=d3e31917-109318 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 + Details
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- Definition The amount of inventory recognized as of the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=108330185&loc=d3e2207-128464 + Details
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