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Acquisitions - Narrative (Details) - USD ($)
$ in Thousands
 1 Months Ended 5 Months Ended 12 Months Ended
Aug. 09, 2024
Nov. 30, 2023
Jun. 30, 2024
Dec. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Apr. 24, 2023
May 31, 2018
Business Acquisition [Line Items]                  
Cash paid to acquire business         $ 121,178 $ 294,018 $ 0    
Total tangible assets acquired $ 25,400                
Goodwill       $ 214,465 214,465 155,004      
Expected amortization expense, year one       9,400 9,400        
Expected amortization expense, year two       9,000 9,000        
Expected amortization expense, year three       8,600 8,600        
Expected amortization expense, year four       8,400 8,400        
Expected amortization expense, year five       8,400 8,400        
Expected amortization expense, thereafter       84,100 84,100        
Cash paid for purchase price adjustments on business acquisition         13,183 0 $ 0    
Materials                  
Business Acquisition [Line Items]                  
Goodwill       79,488 79,488 24,435      
Constructions                  
Business Acquisition [Line Items]                  
Goodwill       134,977 134,977 130,569      
The Credit Agreement                  
Business Acquisition [Line Items]                  
Credit facility capacity                 $ 200,000
Revolving Credit Facility | The Credit Agreement                  
Business Acquisition [Line Items]                  
Credit facility capacity                 $ 350,000
Outstanding letters of credit   $ 100,000     0        
Secured Debt | The Term Loan | Line of Credit                  
Business Acquisition [Line Items]                  
Credit facility capacity   150,000              
Dickerson & Bowen, Inc.                  
Business Acquisition [Line Items]                  
Cash paid to acquire business 125,500                
Revenue since acquisition date       37,800          
Gross profit (loss) since acquisition date       9,500          
Purchase price 121,200                
Identifiable intangible assets 27,900                
Goodwill 67,900                
Property and equipment 38,100                
Intangible assets acquired       27,900 27,900        
Expected amortization expense, year one       2,200 2,200        
Expected amortization expense, year two       1,800 1,800        
Expected amortization expense, year three       1,800 1,800        
Expected amortization expense, year four       1,800 1,800        
Expected amortization expense, year five       1,800 1,800        
Expected amortization expense, thereafter       17,500 17,500        
Acquisition and integration expenses         2,500        
Dickerson & Bowen, Inc. | Customer relationships                  
Business Acquisition [Line Items]                  
Intangible assets acquired       18,200 18,200        
Dickerson & Bowen, Inc. | Materials                  
Business Acquisition [Line Items]                  
Goodwill 47,200                
Dickerson & Bowen, Inc. | Constructions                  
Business Acquisition [Line Items]                  
Goodwill $ 20,700                
LRC/MSG                  
Business Acquisition [Line Items]                  
Consideration transferred   278,000              
Revenue since acquisition date         147,300 7,700      
Gross profit (loss) since acquisition date         8,700 (1,500)      
Purchase price   293,416              
Total tangible assets acquired   154,915              
Identifiable intangible assets   107,460   27,900 27,900        
Goodwill   72,744              
Goodwill expected to be deductible for tax purposes   72,700              
Property and equipment   86,329              
Intangible assets acquired   107,460              
Expected amortization expense, year one           6,200      
Expected amortization expense, year two           6,200      
Expected amortization expense, year three           6,200      
Expected amortization expense, year four           6,200      
Expected amortization expense, year five           6,200      
Expected amortization expense, thereafter           63,500      
Acquisition and integration expenses           $ 5,000      
Cash paid for purchase price adjustments on business acquisition     $ 7,100   13,200        
Net working capital adjustment         4,600        
Tangible and intangible assets adjustment         2,200        
Deferred consideration   22,000              
Decrease in the estimated obligation associated with the tax make-whole agreements         14,900        
Goodwill adjustment         8,100        
Payments for working capital adjustment         6,100        
LRC/MSG | Customer relationships                  
Business Acquisition [Line Items]                  
Identifiable intangible assets       $ 18,200 $ 18,200        
Intangible assets acquired   78,860              
LRC/MSG | Materials                  
Business Acquisition [Line Items]                  
Goodwill   26,000              
LRC/MSG | Constructions                  
Business Acquisition [Line Items]                  
Goodwill   $ 46,700              
CMR                  
Business Acquisition [Line Items]                  
Goodwill               $ 5,100