ASSET IMPAIRMENTS (Tables)

6 Months Ended

Jun. 30, 2020

Asset Impairment Charges [Abstract]

Summary of Impairments

(in thousands, except for number of vessels data)	Number of Vessels			Three Months Ended  March 31, 2020			Number of Vessels			Three Months Ended  June 30, 2020			Number of Vessels			Six Months Ended  June 30, 2020
Beginning balance		46		$	39,287			38		$	26,142			46		$	39,287
Additions		—						22			15,930			22			15,930
Sales		(8	)		(2,938	)		(14	)		(7,407	)		(22	)		(10,345	)
Additional impairment		—			(10,207	)		—			(5,601	)		—			(15,808	)
Ending balance		38		$	26,142			46		$	29,064			46		$	29,064