Customer Concentration and Revenue Information - Contract Revenues by Customer Type (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 27, 2024	Oct. 28, 2023	Jul. 29, 2023	Apr. 29, 2023	Jan. 28, 2023	Oct. 29, 2022	Jul. 30, 2022	Apr. 30, 2022	Jan. 27, 2024	Jan. 28, 2023	Jan. 29, 2022
Concentration Risk [Line Items]
Amount	$ 952,455	$ 1,136,110	$ 1,041,535	$ 1,045,474	$ 917,466	$ 1,042,423	$ 972,273	$ 876,300	$ 4,175,574	$ 3,808,462	$ 3,130,519
% of Total									100.00%	100.00%	100.00%
Revenue Benchmark | Customer Concentration Risk
Concentration Risk [Line Items]
Amount									$ 4,175,600	$ 3,808,500	$ 3,130,500
% of Total									100.00%	100.00%	100.00%
Revenue Benchmark | Customer Concentration Risk | AT&T Inc.
Concentration Risk [Line Items]
Amount									$ 706,500	$ 958,000	$ 735,200
% of Total									16.90%	25.20%	23.50%
Revenue Benchmark | Customer Concentration Risk | Lumen Technologies
Concentration Risk [Line Items]
Amount									$ 650,600	$ 483,500	$ 373,000
% of Total									15.60%	12.70%	11.90%
Revenue Benchmark | Customer Concentration Risk | Comcast Corporation
Concentration Risk [Line Items]
Amount									$ 448,600	$ 430,600	$ 473,800
% of Total									10.70%	11.30%	15.10%
Revenue Benchmark | Customer Concentration Risk | Verizon Communications Inc.
Concentration Risk [Line Items]
Amount									$ 373,800	$ 347,300	$ 352,600
% of Total									9.00%	9.10%	11.30%
Revenue Benchmark | Customer Concentration Risk | Total other customers combined
Concentration Risk [Line Items]
Amount									$ 1,996,100	$ 1,589,100	$ 1,195,900
% of Total									47.80%	41.70%	38.20%