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Goodwill and Intangible Assets - Goodwill by Reporting Unit (Details) $ in Thousands | 12 Months Ended
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Jan. 26, 2020 USD ($)
Goodwill [Roll Forward] |
Beginning balance | $ 351,141
Additions | 0
Ending balance | 351,141
Signal Integrity |
Goodwill [Roll Forward] |
Beginning balance | 274,085
Additions | 0
Ending balance | 274,085
Wireless and Sensing |
Goodwill [Roll Forward] |
Beginning balance | 72,128
Additions | 0
Ending balance | 72,128
Protection |
Goodwill [Roll Forward] |
Beginning balance | 4,928
Additions | 0
Ending balance | $ 4,928

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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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Period Type: | instant

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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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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Details
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- Details
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |