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VESSELS, RIGS AND EQUIPMENT, NET (Summary of Vessels and Equipment, Net) (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Property, Plant and Equipment [Line Items]    
Vessels, rigs and equipment, net $ 3,417,008 $ 3,552,298
Vessels, Rigs And Equipment    
Property, Plant and Equipment [Line Items]    
Cost 4,371,422 4,527,621
Accumulated depreciation $ (954,414) $ (975,323)