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Goodwill and Intangible Assets - Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	9 Months Ended
	Oct. 26, 2024	Jan. 27, 2024	Aug. 31, 2023
Goodwill [Roll Forward]
Goodwill	$ 581,405	$ 561,022
Accumulated Impairment Losses	(249,031)	(249,031)
Total	332,374	$ 311,991
Bigham
Goodwill [Roll Forward]
Goodwill from fiscal 2025 acquisitions	20,627
Total			$ 39,200
Telecommunications Construction Contractor
Goodwill [Roll Forward]
Goodwill from fiscal 2025 acquisitions	$ (244)