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Acquisitions - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Aug. 05, 2025
Aug. 09, 2024
Sep. 30, 2025
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Business Combination [Line Items]            
Issuance of notes receivable       $ 705,278 $ 122,448  
Tangible assets acquired   $ 24,900        
Goodwill     $ 391,660 391,660   $ 214,465
Warren Paving            
Business Combination [Line Items]            
Revenue since acquisition date     59,700 59,700    
Gross profit since acquisition date     13,000 13,000    
Cash and cash equivalents $ 4,217          
Purchase price 541,962          
Tangible assets acquired 551,765          
Identifiable intangible assets 46,600          
Goodwill 137,749          
Property and equipment 419,079          
Intangible assets acquired 46,600          
Consideration transferred 540,000          
Future amortization expense, remainder of fiscal year 1,700          
Future amortization expense, year one 6,700          
Future amortization expense, year two 3,600          
Future amortization expense, year three 3,600          
Future amortization expense, year four 3,600          
Future amortization expense, year five 3,600          
Future amortization expense, thereafter 22,700          
Acquisition and integration expense     11,500 12,500    
Receivables 39,120          
Warren Paving | Construction            
Business Combination [Line Items]            
Goodwill 24,700          
Warren Paving | Materials            
Business Combination [Line Items]            
Goodwill 113,000          
Warren Paving | Customer relationships            
Business Combination [Line Items]            
Intangible assets acquired 12,500          
Papich Construction            
Business Combination [Line Items]            
Revenue since acquisition date     38,700 38,700    
Gross profit since acquisition date     3,800 3,800    
Purchase price 173,400          
Identifiable intangible assets 15,600          
Property and equipment 85,800          
Consideration transferred 170,000          
Acquisition and integration expense     1,500 3,100    
Receivables 33,600          
Goodwill that is tax deductible 38,800          
Net tangible assets 119,000          
Papich Construction | Construction            
Business Combination [Line Items]            
Goodwill 33,500          
Papich Construction | Materials            
Business Combination [Line Items]            
Goodwill $ 5,300          
Dickerson & Bowen, Inc.            
Business Combination [Line Items]            
Issuance of notes receivable   125,500        
Revenue since acquisition date     21,300 59,600    
Gross profit since acquisition date     $ 3,100 $ 8,000    
Cash and cash equivalents   4,000        
Purchase price   121,200        
Identifiable intangible assets   27,900        
Goodwill   68,400        
Property and equipment   38,100        
Dickerson & Bowen, Inc. | Customer relationships            
Business Combination [Line Items]            
Intangible assets acquired   $ 18,200