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Investments in Affiliates - Equity Method Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Investments in affiliates	$ 93,499	$ 92,910
Foreign
Schedule of Equity Method Investments [Line Items]
Investments in affiliates	72,255	68,407
Real estate
Schedule of Equity Method Investments [Line Items]
Investments in affiliates	5,317	7,136
Asphalt terminal
Schedule of Equity Method Investments [Line Items]
Investments in affiliates	$ 15,927	$ 17,367

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- Definition

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