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Goodwill and Intangible Assets (Tables) | 6 Months Ended
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Mar. 29, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets Excluding Goodwill | Intangible assets consist of the following (in millions):
|  | As of |  | As of
| Weighted Average Amortization Period (Years) | March 29, 2019 |  | September 28, 2018
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships | 3.4 | $ | 31.7 |  |  | $ | (20.9 | ) |  | $ | 10.8 |  |  | $ | 31.7 |  |  | $ | (13.2 | ) |  | $ | 18.5 |
Developed technology and other | 4.3 | 89.9 |  |  | (38.1 | ) |  | 51.8 |  |  | 89.9 |  |  | (23.5 | ) |  | 66.4 |
Trademarks | 3.0 | 1.6 |  |  | (1.0 | ) |  | 0.6 |  |  | 1.6 |  |  | (0.8 | ) |  | 0.8 |
Capitalized software | 2.9 | 30.9 |  |  | (10.2 | ) |  | 20.7 |  |  | 18.0 |  |  | (6.0 | ) |  | 12.0 |
IPR&D |  | 46.0 |  |  | — |  |  | 46.0 |  |  | 46.0 |  |  | — |  |  | 46.0 |
Total intangible assets |  | $ | 200.1 |  |  | $ | (70.2 | ) |  | $ | 129.9 |  |  | $ | 187.2 |  |  | $ | (43.5 | ) |  | $ | 143.7 |
Schedule Of Expected Annual Amortization Expense Related To Intangible Assets For The Next Five Years | Annual amortization expense for the next five fiscal years related to intangible assets is expected to be as follows (in millions):
| Remaining 2019 |  | 2020 |  | 2021 |  | 2022 |  | 2023 |  | Thereafter
Amortization expense, cost of goods sold | $ | 15.0 |  |  | $ | 27.0 |  |  | $ | 4.9 |  |  | $ | 0.9 |  |  | $ | 0.9 |  |  | $ | 2.8 |
Amortization expense, operating expense | $ | 9.6 |  |  | $ | 11.9 |  |  | $ | 7.4 |  |  | $ | 1.4 |  |  | $ | 0.1 |  |  | $ | 2.0 |
Total amortization expense | $ | 24.6 |  |  | $ | 38.9 |  |  | $ | 12.3 |  |  | $ | 2.3 |  |  | $ | 1.0 |  |  | $ | 4.8 |

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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