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Customer Concentration and Revenue Information (Tables)
 6 Months Ended
Jul. 27, 2024
Risks and Uncertainties [Abstract]  
Schedule that Represents A Significant Portion of the Company’s Customer Base and Each Over 10% of Total Revenue Customers whose contract revenues exceeded 10% of total contract revenues during the three and six months ended July 27, 2024 or July 29, 2023, as well as total contract revenues from all other customers combined, were as follows (dollars in millions):
For the Three Months EndedFor the Six Months Ended
July 27, 2024July 29, 2023July 27, 2024July 29, 2023
Amount% of TotalAmount% of TotalAmount% of TotalAmount% of Total
AT&T Inc.$210.2 17.5%$174.3 16.7%$425.7 18.2%$398.7 19.1%
Lumen Technologies163.7 13.6162.5 15.6320.5 13.7298.9 14.3
Comcast Corporation105.6 8.8119.5 11.5210.6 9.0240.1 11.5
Verizon Communications Inc.85.3 7.1104.910.1163.5 7.0204.9 9.8
Total other customers combined638.3 53.0480.346.11,225.2 52.1944.4 45.3
Total contract revenues$1,203.1 100.0%$1,041.5 100.0%$2,345.5 100.0%$2,087.0 100.0%
Total contract revenues by customer type during the three and six months ended July 27, 2024 and July 29, 2023 were as follows (dollars in millions):
For the Three Months EndedFor the Six Months Ended
July 27, 2024July 29, 2023July 27, 2024July 29, 2023
Amount% of TotalAmount% of TotalAmount% of TotalAmount% of Total
Telecommunications$1,086.2 90.3%$927.1 89.0%$2,113 90.0%$1,865.3 89.4%
Underground facility locating82.1 6.876.7 7.4163.1 7.0149.6 7.2
Electrical and gas utilities and other34.8 2.937.7 3.669.4 3.072.1 3.4
Total contract revenues$1,203.1 100.0%$1,041.5 100.0%$2,345.5 100.0%$2,087.0 100.0%