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Acquisitions (Tables) | 6 Months Ended
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Apr. 30, 2021
Business Combination And Asset Acquisition [Abstract] |
Total purchase consideration for business and asset acquisitions | The following is a summary of the allocation of the total purchase consideration for business and asset acquisitions that the Company completed during the six months ended April 30, 2021 and fiscal 2020:
(In millions) | April 30, 2021 |  | October 31, 2020
Technology | $ | 163.5 |  |  | $ | — |
In-Process Research & Development (IPR&D) | 20.0 |  |  | — |
Customer relationships | 5.5 |  |  | 11.4 |
Trademarks | 1.3 |  |  | 5.1 |
Other | 0.4 |  |  | 3.9 |
Total identifiable intangible assets | $ | 190.7 |  |  | $ | 20.4 |
Goodwill | 49.7 |  |  | 15.3 |
Net tangible assets (liabilities) | (13.0) |  |  | (0.3) |
Fair value of contingent consideration | (38.6) |  |  | — |
Total closing purchase price | $ | 188.8 |  |  | $ | 35.4 |
Contingent consideration reconciliation | The following table provides a reconciliation of the beginning and ending balances of contingent consideration:
Periods Ended April 30, | Three Months |  | Six Months
(In millions) | 2021 |  | 2020 |  | 2021 |  | 2020
Beginning balance | $ | 30.2 |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Purchase price contingent consideration | 0.6 |  |  | — |  |  | 30.8 |  |  | — |
Payments | — |  |  | — |  |  | — |  |  | — |
Change in fair value | — |  |  | — |  |  | — |  |  | — |
Ending balance | $ | 30.8 |  |  | $ | — |  |  | $ | 30.8 |  |  | $ | — |

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- Definition Schedule Of Recognized Identified Assets Acquired And Liabilities Assumed And Asset Acquisitions [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258 + Details
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