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Goodwill and Intangible Assets (Schedule of Goodwill) (Details) - USD ($) $ in Thousands |  | 3 Months Ended
--- | --- | ---
Nov. 01, 2019 | Dec. 28, 2019
Goodwill [Line Items] |  |
Balance, October 1, 2019 |  | $ 1,238,179
Foreign currency translation adjustment |  | 4,710
Balance, December 28, 2019 |  | 1,606,050
Software Products |  |
Goodwill [Line Items] |  |
Balance, October 1, 2019 |  | 1,196,064
Foreign currency translation adjustment |  | 4,550
Balance, December 28, 2019 |  | 1,563,775
Professional Services |  |
Goodwill [Line Items] |  |
Balance, October 1, 2019 |  | 42,115
Foreign currency translation adjustment |  | 160
Balance, December 28, 2019 |  | 42,275
Onshape [Member] |  |
Goodwill [Line Items] |  |
Goodwill, acquired | $ 363,200 | 363,161
Onshape [Member] | Software Products |  |
Goodwill [Line Items] |  |
Goodwill, acquired |  | 363,161
Onshape [Member] | Professional Services |  |
Goodwill [Line Items] |  |
Goodwill, acquired |  | $ 0

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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