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Investments in Affiliates - Equity Method Investments (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Schedule of Equity Method Investments [Line Items]    
Investments in affiliates $ 95,093 $ 94,031
Foreign    
Schedule of Equity Method Investments [Line Items]    
Investments in affiliates 73,813 72,075
Real estate    
Schedule of Equity Method Investments [Line Items]    
Investments in affiliates 4,526 4,552
Asphalt terminal    
Schedule of Equity Method Investments [Line Items]    
Investments in affiliates $ 16,754 $ 17,404