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Accounts Receivable, Contract Assets, and Contract Liabilities - Customer Credit Concentration (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
May 01, 2021 | Oct. 30, 2021 | Jan. 30, 2021
Concentration Risk |  |  |
Amount |  | $ 959,741 | $ 858,123
Customer Concentration Risk | Trade Accounts Receivable and Costs and Estimated Earnings | Verizon Communications Inc. |  |  |
Concentration Risk |  |  |
Amount |  | $ 233,500 | 389,900
% of Total | 37.40% | 22.10% |
Customer Concentration Risk | Trade Accounts Receivable and Costs and Estimated Earnings | Lumen Technologies |  |  |
Concentration Risk |  |  |
Amount |  | $ 177,400 | 173,500
% of Total | 16.60% | 16.80% |
Customer Concentration Risk | Trade Accounts Receivable and Costs and Estimated Earnings | Comcast Corporation |  |  |
Concentration Risk |  |  |
Amount |  | $ 131,500 | 131,700
% of Total | 12.60% | 12.40% |
Customer Concentration Risk | Trade Accounts Receivable and Costs and Estimated Earnings | AT&T Inc. |  |  |
Concentration Risk |  |  |
Amount |  | $ 107,000 | $ 71,700
% of Total | 6.90% | 10.10% |

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