v3.26.1
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Jan. 21, 2026
Property, Plant, and Equipment [Line Items]            
Assets $ 5,746,745   $ 5,746,745   $ 5,748,661  
Liabilities 5,108,423   5,108,423   4,804,678  
Capitalized Contract Cost, Net, Noncurrent 12,100   12,100   13,700  
Other assets 100,241   100,241   81,697  
Other Liabilities, Insurance Premiums, Current 5,800   5,800   2,700  
Deferred Revenue 10,900   10,900   11,500  
Goodwill 275,366   275,366   365,703  
Unamortized Debt Issuance Expense (23,876)   (23,876)   (21,858)  
Amortization of deferred financing costs 3,300 $ 2,300 7,218 $ 5,218    
Prepaid expense 16,107   16,107   20,403  
Other receivables 16,533   16,533   10,587  
Other current assets 48,500   48,500   62,677  
Debt, net 2,763,717   2,763,717   3,774,173  
Total debt 2,787,593   2,787,593   3,796,031  
Investments 21,166   21,166   22,243  
Nontrade Receivables, Current         13,605  
Deposits 0   0   3,817  
Inventory, Gross 909   909   1,269  
Debt, net 2,763,717   2,763,717   3,774,173  
Total debt 2,787,593   2,787,593   3,796,031  
Loans payable            
Property, Plant, and Equipment [Line Items]            
Total debt 1,631,738   1,631,738   2,031,493  
Total debt 1,631,738   1,631,738   2,031,493  
Loans payable | Corporate Bridge Loan Credit Agreement $1.25B            
Property, Plant, and Equipment [Line Items]            
Total debt 0   0   1,227,294  
Total debt 0   0   1,227,294  
Balance Sheet Location [Axis]: us-gaap:OtherAssetsCurrent            
Property, Plant, and Equipment [Line Items]            
Other current assets $ 14,951   $ 14,951   $ 12,996  
Three Customers | Accounts Receivable | Customer Concentration Risk            
Property, Plant, and Equipment [Line Items]            
Concentration risk     33.00%   41.00%  
Jefferson Terminal | Customer One | Sales Revenue, Segment | Customer Concentration Risk            
Property, Plant, and Equipment [Line Items]            
Concentration risk 8.00% 11.00% 8.00% 11.00%    
Railroad | Customer One | Sales Revenue, Segment | Customer Concentration Risk            
Property, Plant, and Equipment [Line Items]            
Concentration risk 23.00% 32.00% 23.00% 36.00%    
The Wheeling Corporation            
Property, Plant, and Equipment [Line Items]            
Finance Lease, Liability, Noncurrent           $ 46,800
Tidewater            
Property, Plant, and Equipment [Line Items]            
Finance Lease, Liability, Noncurrent           $ 26,500