v3.26.1
Fixed Assets (Details) - USD ($)
 3 Months Ended
Feb. 27, 2026
Mar. 31, 2026
Dec. 31, 2025
Property, Plant, and Equipment [Line Items]      
Total fixed assets, net   $ 674,958,000 $ 677,518,000
Right of Use Assets   $ 16,580,000 $ 26,866,000
Owner of a deck barge | NBHC      
Property, Plant, and Equipment [Line Items]      
Ownership percentage   50.00% 50.00%
NBHC      
Property, Plant, and Equipment [Line Items]      
Ownership percentage   66.67%  
mv NORDIC ODYSSEY      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   $ 16,470,000 $ 16,768,000
m/v NORDIC ORION      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   16,598,000 16,652,000
m/v NORDIC OSHIMA      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   21,298,000 21,599,000
m/v NORDIC OLYMPIC      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   22,179,000 22,436,000
m/v NORDIC ODIN      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   22,242,000 22,593,000
mv Nordic Bulk Oasis      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   23,621,000 23,851,000
Nordic Nuluujaak      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   34,024,000 33,298,000
Nordic Qinngua      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   34,012,000 33,305,000
NORDIC SANNGIJUQ      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   33,613,000 32,973,000
Nordic Nukilik      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   33,042,000 33,349,000
mv BULK ENDURANCE      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   19,238,000 19,417,000
mv BULK COURADEOUS      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   15,115,000 15,347,000
mv BULK Concord      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   16,181,000 16,739,000
m/v Bulk Pride [Member]      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   11,410,000 10,698,000
BULK Spirit      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   10,267,000 10,682,000
mv BULK SACHUEST      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   16,250,000 15,401,000
Mv BULK Independence      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   11,260,000 11,756,000
Bulk Friendship      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   10,893,000 11,087,000
Bulk Valor      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   16,389,000 16,695,000
mv BULK PROMISE      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   16,926,000 17,234,000
m/v Bulk Destiny [Member]      
Property, Plant, and Equipment [Line Items]      
Right of Use Assets   16,580,000 16,740,000
m/v Bulk Prudence      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   25,056,000 25,478,000
mv BULK PANGAEA      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   26,775,000 27,066,000
mv BULK BRENTON      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   26,758,000 27,079,000
Strategic Fortitude      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   14,690,000 14,929,000
Strategic Explorer      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   14,430,000 14,646,000
Strategic Entity      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   14,815,000 15,060,000
Strategic Synergy      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   13,329,000 13,501,000
Strategic Alliance      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   13,330,000 13,501,000
Strategic Unity      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   13,330,000 13,502,000
Strategic Harmony      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   13,329,000 13,501,000
Strategic Equity      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   13,330,000 13,501,000
Strategic Venture      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   13,331,000 13,502,000
Strategic Savannah      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   11,006,000 10,984,000
Strategic Spirit      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   11,280,000 11,401,000
Strategic Vision      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   10,440,000 10,591,000
Strategic Tenacity      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   10,103,000 10,247,000
Miss Nora G Pearl      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   1,597,000 1,597,000
Other fixed assets      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   8,925,000 8,147,000
Strategic Fortitude      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   18,076,000 17,406,000
Fixed Assets, Excluding Other      
Property, Plant, and Equipment [Line Items]      
Vessels and vessel improvements, gross   666,033,000 669,372,000
m/v Bulk Xaymaca      
Property, Plant, and Equipment [Line Items]      
Right of Use Assets   0 $ 10,127,000
Proceeds from sale of assets $ 9,600,000    
Loss on sale of assets   $ 400,000