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Fair value measurements (Tables) | 9 Months Ended
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Jun. 27, 2020
Fair Value Disclosures [Abstract] |
Summary of fair value measurements by level for the assets measured on a recurring basis | The following table summarizes fair value measurements by level for the assets measured at fair value on a recurring basis as of June 27, 2020 and September 28, 2019:
| June 27, 2020 |  |  |  |  |  |
(In thousands) | Level 1 |  | Level 2 |  | Level 3 |  | Total
Assets: |  |  |  |  |  |  |
Money market funds (cash equivalents) | $ | 161,352 |  |  | $ | — |  |  | $ | — |  |  | $ | 161,352 |
| September 28, 2019 |  |  |  |  |  |
(In thousands) | Level 1 |  | Level 2 |  | Level 3 |  | Total
Assets: |  |  |  |  |  |  |
Money market funds (cash equivalents) | $ | 267,806 |  |  | $ | — |  |  | $ | — |  |  | $ | 267,806 |

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + 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 (b) -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 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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