v3.26.1
Acquisitions and Dispositions (Details)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Mar. 07, 2025
USD ($)
plantOperation
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
business
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
business
Dec. 31, 2024
USD ($)
Business Combination [Line Items]              
Gains on bargain purchases       $ 235 $ 3,547    
Goodwill   $ 583,996 $ 464,133 583,996 464,133 $ 519,668 $ 297,225
Goodwill, measurement period adjustment       10,123 (5,583) (2,423)  
Acquisition related costs   1,500 1,600 3,500 6,900    
West              
Business Combination [Line Items]              
Goodwill   137,881 $ 123,674 137,881 123,674 137,575 $ 123,674
Goodwill, measurement period adjustment       $ 306 $ 0 $ 1,997  
Discontinued Operations, Disposed of by Sale | Strata Ready-Mix Plant Operations              
Business Combination [Line Items]              
Number of plant operations sold | plantOperation 4            
Proceeds from disposition of business $ 14,500            
2026 Aggregate Acquisitions              
Business Combination [Line Items]              
Number of businesses acquired | business       4      
Business combination, consideration transferred       $ 184,400      
Current assets acquired   11,000   11,000      
Property, plant, and equipment acquired   119,400   119,400      
Goodwill   65,100   65,100      
Finite-lived intangibles acquired   4,200   4,200      
Deferred tax liability acquired   8,200   8,200      
Current liabilities acquired   6,200   6,200      
Other noncurrent liabilities acquired   880   880      
Goodwill, measurement period adjustment   11,700          
Revenue   25,100   27,600      
Net income (loss)   $ 730   $ (1,600)      
Montana Aggregate-Based Operations              
Business Combination [Line Items]              
Number of businesses acquired | business       2      
Montana Ready-Mix Concrete Business              
Business Combination [Line Items]              
Number of businesses acquired | business       1      
Oregon Supplier of Aggregates, Asphalt, Contracting and Paving Services              
Business Combination [Line Items]              
Gains on bargain purchases       $ 235      
2025 Aggregate Acquisitions              
Business Combination [Line Items]              
Number of businesses acquired | business           5  
Business combination, consideration transferred           $ 622,200  
Goodwill, measurement period adjustment       (780)      
Initial accounting incomplete, adjustment, intangibles       3,000      
Initial accounting incomplete, adjustment, property, plant, and equipment       $ (2,200)