DEBT (Toshin Lease Financing) (Details) - USD ($) $ in Thousands	Jan. 14, 2022	Dec. 07, 2021
First three years
Debt Instrument [Line Items]
Bareboat charter rate	$ 6,300
Second three years
Debt Instrument [Line Items]
Bareboat charter rate	6,200	$ 6,000
Last four years
Debt Instrument [Line Items]
Bareboat charter rate		5,700
Toshin Lease Financing
Debt Instrument [Line Items]
Maximum borrowing capacity		390,000
Sale Leaseback Transaction, Proceeds		6,900
Repayments of secured debt		10,200
Issuance and other debt financing costs		$ 400
Sale Leaseback Transaction, Lease Terms		10-year
Sale Leaseback Transaction, purchase obligation		$ 1,000
Toshin Lease Financing | First three years
Debt Instrument [Line Items]
Bareboat charter rate		6,200
Toshin Lease Financing | 2012-built MR
Debt Instrument [Line Items]
Net sale price		17,100
$390 Million Facility Term Loan
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 390,000
$390 Million Facility Term Loan | 2012-built MR
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 390,000