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CONSTRUCTION JOINT VENTURES - Construction Joint Ventures, Partner Income (Details) - Equity Method Investment, Nonconsolidated Investee or Group of Investees - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Revenues	$ 88,197	$ 56,297	$ 141,557
Income before tax	14,112	18,542	25,820
Sterling’s noncontrolling interest:
Revenues	42,377	22,840	58,674
Income before tax	$ 6,414	$ 7,557	$ 10,535

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