Quarterly report [Sections 13 or 15(d)]

Debt - Additional Information (Details)

v3.25.3
Debt - Additional Information (Details)
$ in Thousands
3 Months Ended 9 Months Ended
May 13, 2025
USD ($)
Sites
Jun. 30, 2025
USD ($)
Sites
Sep. 30, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 21, 2016
USD ($)
Line of Credit Facility [Line Items]          
Credit agreement amendment description     On May 13, 2025, GPM entered into an amendment (the “M&T Credit Agreement Amendment”) to that certain Third Amended and Restated Credit Agreement, dated November 21, 2023 by and among GPM, M&T Bank and the other parties thereto (the “M&T Credit Agreement”) to increase the aggregate original principal amount of the real estate loans thereunder (the “Real Estate Loans”) from $49.5 million to $83.7 million.    
Additional borrowing     $ 377,042 $ 375,951  
GPM [Member] | Agreement With M&T Bank [Member]          
Line of Credit Facility [Line Items]          
Number of real estate | Sites   22      
GPM [Member] | Real Estate Loan [Member]          
Line of Credit Facility [Line Items]          
Consideration   $ 22,400      
GPM [Member] | Real Estate Loan [Member] | Agreement With M&T Bank [Member]          
Line of Credit Facility [Line Items]          
Interest rate 2.25        
Debt instrument face amount $ 83,700       $ 49,500
Additional principal amount $ 34,200        
Financing payment terms     The additional $34.2 million principal amount of the Real Estate Loans matures in May 2030 and is payable in monthly installments based on a fifteen-year amortization schedule, with the balance of the loan payable at maturity, and bears interest at SOFR plus 2.25%.    
Number of real estate | Sites 78 21      
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]