Accounts Receivable, Contract Assets, and Contract Liabilities - Customer Credit Concentration (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Apr. 29, 2023	Oct. 28, 2023	Jan. 28, 2023
Concentration Risk
Amount		$ 1,461,170	$ 1,067,013
Customer Concentration Risk | Trade Accounts Receivable and Costs and Estimated Earnings | Lumen Technologies
Concentration Risk
Amount		$ 381,200	189,300
% of Total	17.40%	25.20%
Customer Concentration Risk | Trade Accounts Receivable and Costs and Estimated Earnings | Comcast Corporation
Concentration Risk
Amount		$ 124,400	125,200
% of Total	11.50%	8.20%
Customer Concentration Risk | Trade Accounts Receivable and Costs and Estimated Earnings | AT&T Inc.
Concentration Risk
Amount		$ 102,600	136,200
% of Total	12.50%	6.80%
Customer Concentration Risk | Trade Accounts Receivable and Costs and Estimated Earnings | Frontier Communications Corporation
Concentration Risk
Amount		$ 100,800	$ 153,200
% of Total	14.00%	6.70%