Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
Apr. 30, 2022	May 01, 2021	Jan. 29, 2022
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 3,900	$ 4,700
Intangible Assets, Gross (Excluding Goodwill)	325,967		$ 325,967
Accumulated Amortization	228,065		224,135
Intangible Assets, Net	97,902		101,832
UtiliQuest
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	4,700		4,700
Accumulated Amortization	0		0
Intangible Assets, Net	$ 4,700		4,700
Customer relationships
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Usesul life	8 years 2 months 12 days
Intangible Assets, Gross (Excluding Goodwill)	$ 312,017		312,017
Accumulated Amortization	219,697		215,806
Intangible Assets, Net	$ 92,320		96,211
Trade names
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Usesul life	8 years 3 months 18 days
Intangible Assets, Gross (Excluding Goodwill)	$ 9,250		9,250
Accumulated Amortization	8,368		8,329
Intangible Assets, Net	$ 882		$ 921

Finite-Lived and Indefinite-Lived Intangible Assets

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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.

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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
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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

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- Definition

Amount before accumulated amortization of intangible assets, excluding goodwill.

+ References

No definition available.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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