VESSELS, DEFERRED DRYDOCK AND OTHER PROPERTY (Vessels and Other Property) (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Net, Total	$ 2,077,986	$ 2,050,211
Vessel/Fleet and Other Property [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Net, Total	2,077,986	2,050,211
Vessel/Fleet [Member]
Property, Plant and Equipment [Line Items]
Cost	2,573,678	2,506,606	$ 2,333,066	$ 2,004,420
Accumulated Depreciation	(500,534)	(460,623)	(422,276)	(327,321)
Property, Plant and Equipment, Net, Total	2,073,144	2,045,983	$ 1,910,790	$ 1,677,099
Other Property [Member]
Property, Plant and Equipment [Line Items]
Cost	10,893	9,961
Accumulated Depreciation	(6,051)	(5,733)
Property, Plant and Equipment, Net, Total	4,842	4,228
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Cost	$ 57,725	$ 37,020