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v3.25.2

Customer Concentration and Revenue Information - Customer Type (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 26, 2025 | Jul. 27, 2024 | Jul. 26, 2025 | Jul. 27, 2024
Concentration Risk |  |  |  |
Contract revenues | $ 1,377,944 | $ 1,203,059 | $ 2,636,551 | $ 2,345,482
Customer Concentration Risk | Revenue Benchmark |  |  |  |
Concentration Risk |  |  |  |
Contract revenues | $ 1,377,900 | $ 1,203,100 | $ 2,636,600 | $ 2,345,500
Concentration risk, percentage | 100.00% | 100.00% | 100.00% | 100.00%
% of Total | 100.00% | 100.00% | 100.00% | 100.00%
Customer Concentration Risk | Revenue Benchmark | Telecommunications |  |  |  |
Concentration Risk |  |  |  |
Contract revenues | $ 1,269,100 | $ 1,086,200 | $ 2,418,000 | $ 2,113,000
Concentration risk, percentage | 92.10% | 90.30% | 91.70% | 90.00%
Customer Concentration Risk | Revenue Benchmark | Underground facility locating |  |  |  |
Concentration Risk |  |  |  |
Contract revenues | $ 84,100 | $ 82,100 | $ 166,400 | $ 163,100
Concentration risk, percentage | 6.10% | 6.80% | 6.30% | 7.00%
Customer Concentration Risk | Revenue Benchmark | Electrical and gas utilities and other |  |  |  |
Concentration Risk |  |  |  |
Contract revenues | $ 24,700 | $ 34,800 | $ 52,200 | $ 69,400
Concentration risk, percentage | 1.80% | 2.90% | 2.00% | 3.00%

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