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Acquisitions - Narratives (Details) - USD ($)
$ in Thousands
 3 Months Ended
Aug. 18, 2023
Oct. 26, 2024
Jul. 27, 2024
Apr. 27, 2024
Jan. 27, 2024
Jan. 25, 2025
Oct. 28, 2023
Jan. 28, 2023
Business Acquisition [Line Items]                
Goodwill         $ 311,991 $ 330,330   $ 272,545
Telecommunications Construction Company                
Business Acquisition [Line Items]                
Asset acquisition, consideration transferred         $ 400      
Telecommunications Construction Contractor in Various States                
Business Acquisition [Line Items]                
Payment to acquire business, net of cash acquired   $ 150,700            
Cash and equivalents   0            
Goodwill   $ 10,000            
Northwestern United States Telecommunications Construction Contractor                
Business Acquisition [Line Items]                
Payment to acquire business, net of cash acquired     $ 20,400          
Business combination, consideration transferred     24,500          
Cash and equivalents     4,100          
Goodwill     $ 5,400          
Midwestern United States Telecommunications Construction Contractor                
Business Acquisition [Line Items]                
Payment to acquire business, net of cash acquired       $ 12,800        
Business combination, consideration transferred       16,000        
Cash and equivalents       3,200        
Goodwill       $ 3,200        
Bigham                
Business Acquisition [Line Items]                
Payment to acquire business, net of cash acquired $ 127,000              
Business combination, consideration transferred 131,200              
Cash and equivalents 8,300           $ 8,300  
Business combination, consideration transferred, liabilities incurred 4,100              
Goodwill             $ 39,200  
Business acquisition, goodwill and intangible assets, expected tax deductible amount $ 81,400              
Telecommunications Construction Contractors                
Business Acquisition [Line Items]                
Goodwill           18,600    
Business acquisition, goodwill and intangible assets, expected tax deductible amount           $ 160,800