v3.26.1
DEBT - Components of Long-Term Debt (Details) - USD ($)
$ in Thousands
Jan. 02, 2026
Dec. 31, 2025
Dec. 31, 2024
Line of Credit Facility [Line Items]      
Permian Transmission Term Loan: Summit Permian Transmission’s variable rate senior secured term loan due January 2028   $ 1,054,998  
Less: unamortized debt discount and debt issuance costs   (9,428) $ (15,746)
Total debt, net of unamortized debt discount, premium and debt issuance costs   1,045,570 993,575
Less: current portion of Permian Transmission Term Loan   (21,223) (16,580)
Total long-term debt   1,024,347 976,995
Asset Backed Lending Facility | Line of Credit      
Line of Credit Facility [Line Items]      
Amended and Restated ABL Facility: Summit Holdings’ asset based credit facility due July 2029   113,000 305,000
Permian Transmission Term Loan      
Line of Credit Facility [Line Items]      
Permian Transmission Term Loan: Summit Permian Transmission’s variable rate senior secured term loan due January 2028   116,998  
Permian Transmission Term Loan | Line of Credit      
Line of Credit Facility [Line Items]      
Permian Transmission Term Loan: Summit Permian Transmission’s variable rate senior secured term loan due January 2028   116,998 129,321
Permian Transmission Term Loan | Line of Credit | Subsequent Event      
Line of Credit Facility [Line Items]      
Principal payment $ 4,300    
2029 Secured Notes | Term Loan      
Line of Credit Facility [Line Items]      
2029 Secured Notes: 8.625% senior secured second lien notes due October 2029   $ 825,000 $ 575,000
Stated interest rate (as a percent)   8.625%