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Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jul. 31, 2021 | Jul. 25, 2020 | Jul. 31, 2021 | Jul. 25, 2020 | Jan. 30, 2021
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |  |
Amortization of intangible assets | $ 4,700 | $ 5,200 | $ 9,400 | $ 10,400 |
Intangible Assets, Gross (Excluding Goodwill) | 327,067 |  | 327,067 |  | $ 327,067
Accumulated Amortization | 217,099 |  | 217,099 |  | 207,745
Intangible Assets, Net | 109,968 |  | 109,968 |  | 119,322
UtiliQuest |  |  |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible Assets, Gross (Excluding Goodwill) | 4,700 |  | 4,700 |  | 4,700
Accumulated Amortization | 0 |  | 0 |  | 0
Intangible Assets, Net | $ 4,700 |  | 4,700 |  | 4,700
Customer relationships |  |  |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |  |
Usesul life | 8 years 10 months 24 days |  |  |  |
Intangible Assets, Gross (Excluding Goodwill) | $ 312,017 |  | 312,017 |  | 312,017
Accumulated Amortization | 207,798 |  | 207,798 |  | 198,604
Intangible Assets, Net | $ 104,219 |  | 104,219 |  | 113,413
Trade names |  |  |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |  |
Usesul life | 8 years 3 months 18 days |  |  |  |
Intangible Assets, Gross (Excluding Goodwill) | $ 10,350 |  | 10,350 |  | 10,350
Accumulated Amortization | 9,301 |  | 9,301 |  | 9,141
Intangible Assets, Net | $ 1,049 |  | $ 1,049 |  | $ 1,209

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- Definition Finite-Lived and Indefinite-Lived Intangible Assets + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + 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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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 + Details
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