CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
CONSOLIDATED BALANCE SHEETS [Abstract]
Unbilled voyage receivable (in dollars)	$ 181,211	$ 237,298
Voyage receivables, allowance for credit losses	$ 86	$ 191
Common stock, shares authorized	100,000,000	100,000,000
Common stock, no par value	$ 0	$ 0
Common stock, shares, issued	49,194,458	48,925,562
Common stock, shares, outstanding	49,194,458	48,925,562