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Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Jan. 30, 2021 | Jan. 25, 2020
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 327,067 | $ 327,267
Accumulated Amortization | 207,745 | 187,322
Intangible Assets, Net | 119,322 | 139,945
UtiliQuest |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 4,700 | 4,700
Intangible Assets, Net | $ 4,700 | 4,700
Customer relationships |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Useful Lives (Years) | 9 years 3 months 18 days |
Gross Carrying Amount | $ 312,017 | 312,017
Accumulated Amortization | 198,604 | 178,411
Intangible Assets, Net | $ 113,413 | 133,606
Trade names |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Remaining Useful Lives (Years) | 8 years 1 month 6 days |
Gross Carrying Amount | $ 10,350 | 10,350
Accumulated Amortization | 9,141 | 8,732
Intangible Assets, Net | 1,209 | 1,618
Non-compete agreements |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 0 | 200
Accumulated Amortization | 0 | 179
Intangible Assets, Net | $ 0 | $ 21

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- Definition Finite-Lived and Indefinite-Lived Intangible Assets + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959 + Details
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