LEASES (Tables)

12 Months Ended

Dec. 31, 2024

Lease [Abstract]

Schedule of lease cost

(Dollars in thousands)		2024		2023		2022
Operating lease cost
Vessel assets
Charter hire expenses	$	11,977	$	6,192	$	9,935
Finance lease cost
Vessel assets
Amortization of right-of-use assets		—		731		196
Interest on lease liabilities		—		124		34
Office and other space
General and administrative		904		869		911
Voyage expenses		180		180		172
Short-term lease cost
Vessel assets (1)
Charter hire expenses		4,784		18,679		8,636
Total lease cost	$	17,845	$	26,775	$	19,884

(1) Excludes vessels and workboats spot chartered-in under operating leases and employed in the Crude Tankers Lightering business for periods of less than one month each, totaling $4.0 million, $2.1 million and $1.4 million for the years ended December 31, 2024, 2023 and 2022, respectively, including both lease and non-lease components.

Supplemental lease information

Supplemental cash flow information related to leases was as follows:

(Dollars in thousands)		2024		2023		2022
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows used for operating leases	$	13,240	$	6,028	$	10,207
Finance cash flows used for finance leases		—		42,284		533

Supplemental balance sheet information related to leases was as follows:

(Dollars in thousands)	December 31, 2024		December 31, 2023
Operating lease right-of-use assets	$	21,229	$	20,391
Current portion of operating lease liabilities	$	(14,617)	$	(10,223)
Long-term operating lease liabilities		(8,715)		(11,631)
Total operating lease liabilities	$	(23,332)	$	(21,854)
Weighted average remaining lease term - operating leases		3.37 years		4.42 years
Weighted average discount rate - operating leases		5.51%		5.90%

Schedule of lease maturity receivables

(Dollars in thousands)	Amount		Revenue Days
2025	$	115,548	4,157
2026		79,611	2,699
2027		39,433	1,259
2028		34,038	1,098
2029		33,945	1,095
Thereafter		7,068	228
Future minimum revenues	$	309,643	10,536

Office Space And Lightering Workboat Dock Space [Member]

Lease [Abstract]

Schedule of lease maturity payments

Payments of lease liabilities for office and other space as of December 31, 2024 are as follows:

(Dollars in thousands)		Amount
2025	$	1,093
2026		1,113
2027		1,077
2028		1,077
2029		1,077
Thereafter		3,678
Total lease payments		9,115
less imputed interest		(1,486)
Total operating lease liabilities	$	7,629

Time Charters-In [Member]

Lease [Abstract]

Schedule of lease maturity payments

Time Charters-in

(Dollars in thousands)	Amount		Operating Days
2025	$	14,180	528
2026		1,949	72
Total lease payments (lease component only)		16,129	600
less imputed interest		(426)
Total operating lease liabilities	$	15,703