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Goodwill and Intangible Assets - Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Jan. 26, 2019 | Jan. 27, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |  |
Goodwill gross | $ 521,516 | $ 517,510
Accumulated impairment losses | (195,767) | $ (195,767)
Beginning balance | 321,743 |
Goodwill from fiscal 2019 acquisition | 4,097 |
Purchase price allocation adjustments from fiscal 2019 acquisition | (91) |
Ending balance | $ 325,749 |

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- Definition Amount before 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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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