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Customer Concentration and Revenue Information - Revenue Concentration Risk (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 30, 2022 | Jul. 31, 2021 | Jul. 30, 2022 | Jul. 31, 2021
Concentration Risk |  |  |  |
Contract revenues | $ 972,273 | $ 787,568 | $ 1,848,573 | $ 1,515,065
Revenue Benchmark | Customer Concentration Risk |  |  |  |
Concentration Risk |  |  |  |
Contract revenues | $ 972,300 | $ 787,600 | $ 1,848,600 | $ 1,515,100
% of Total | 100.00% | 100.00% | 100.00% | 100.00%
Revenue Benchmark | Customer Concentration Risk | AT&T Inc. |  |  |  |
Concentration Risk |  |  |  |
Contract revenues | $ 255,900 | $ 177,500 | $ 493,300 | $ 333,100
% of Total | 26.30% | 22.50% | 26.70% | 22.00%
Revenue Benchmark | Customer Concentration Risk | Lumen Technologies |  |  |  |
Concentration Risk |  |  |  |
Contract revenues | $ 127,600 | $ 95,400 | $ 230,400 | $ 181,200
% of Total | 13.10% | 12.10% | 12.50% | 12.00%
Revenue Benchmark | Customer Concentration Risk | Comcast Corporation |  |  |  |
Concentration Risk |  |  |  |
Contract revenues | $ 111,800 | $ 121,700 | $ 223,000 | $ 252,800
% of Total | 11.50% | 15.50% | 12.10% | 16.70%
Revenue Benchmark | Customer Concentration Risk | Verizon Communications Inc. |  |  |  |
Concentration Risk |  |  |  |
Contract revenues | $ 80,800 | $ 90,800 | $ 161,800 | $ 182,300
% of Total | 8.30% | 11.50% | 8.80% | 12.00%
Revenue Benchmark | Customer Concentration Risk | Total other customers combined |  |  |  |
Concentration Risk |  |  |  |
Contract revenues | $ 396,200 | $ 302,200 | $ 740,100 | $ 565,700
% of Total | 40.80% | 38.40% | 40.00% | 37.30%

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