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Accounts Receivable, Contract Assets, and Contract Liabilities - Customer Credit Concentration (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Apr. 30, 2022 | Oct. 29, 2022 | Jan. 29, 2022
Concentration Risk |  |  |
Amount |  | $ 1,244,482 | $ 895,898
Customer Concentration Risk | Trade Accounts Receivable and Costs and Estimated Earnings | Lumen Technologies |  |  |
Concentration Risk |  |  |
Amount |  | $ 226,900 | 166,000
% of Total | 18.40% | 17.60% |
Customer Concentration Risk | Trade Accounts Receivable and Costs and Estimated Earnings | AT&T Inc. |  |  |
Concentration Risk |  |  |
Amount |  | $ 176,100 | 106,000
% of Total | 11.70% | 13.70% |
Customer Concentration Risk | Trade Accounts Receivable and Costs and Estimated Earnings | Verizon Communications Inc. |  |  |
Concentration Risk |  |  |
Amount |  | $ 153,800 | 144,300
% of Total | 16.00% | 12.00% |
Customer Concentration Risk | Trade Accounts Receivable and Costs and Estimated Earnings | Comcast Corporation |  |  |
Concentration Risk |  |  |
Amount |  | $ 145,900 | $ 113,500
% of Total | 12.60% | 11.30% |

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