v3.26.3
Debt - Additional Information (Details)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jul. 15, 2026
Jan. 31, 2026
USD ($)
Site
May 31, 2012
Sep. 30, 2026
USD ($)
Mar. 31, 2026
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Site
Debt Instrument [Line Items]                
Line of credit facility, maximum borrowing capacity       $ 240,000,000   $ 240,000,000    
Cash paid for interest, including debt and finance lease obligations           $ 32,000,000 $ 36,100,000  
Finance Lease Obligations [Member]                
Debt Instrument [Line Items]                
Weighted average discount rate, percent       6.00%   6.00%    
Increases in finance lease obligations and right-of-use assets         $ 56,300,000      
Interest on finance lease obligation       $ 900,000   $ 2,100,000 $ 200,000  
Finance Lease Obligations [Member] | Getty Realty Corporation [Member]                
Debt Instrument [Line Items]                
Lessee leasing arrangements, operating leases, term of contract     15 years          
Lease extended period of lease     20 years          
Number of gas stations leased | Site   106           106
Percentage increase annual fixed rent payments   1.50%           1.50%
Annual rent   $ 6,900,000            
Lessee, Finance Lease, Existence of Option to Extend [true false]   true            
Number of sites accounting for finance lease | Site   25            
Number of remaining sites accounting for finance lease | Site   81            
Maximum [Member] | Finance Lease Obligations [Member] | Getty Realty Corporation [Member]                
Debt Instrument [Line Items]                
Number of additional sites | Site   25            
Purchase price of additional units   $ 6,600,000            
Number of additional sites purchase option | Site   9            
Number of sites option to recapture | Site   6            
Minimum [Member] | Finance Lease Obligations [Member]                
Debt Instrument [Line Items]                
Percentage increase of fair value at lease inception exceeds total fair value real property               25.00%
Credit Facility [Member]                
Debt Instrument [Line Items]                
Letters of credit outstanding, amount       $ 4,900,000   4,900,000   $ 4,900,000
Line of credit facility, connection with amending           $ 5,500,000    
Credit Facility [Member] | Notes Payable to Banks [Member]                
Debt Instrument [Line Items]                
Line of credit facility, interest rate at period end       5.60%   5.60%   5.60%
Debt instrument, basis spread on variable rate           2.00%   2.00%
Credit Facility [Member] | Maximum [Member]                
Debt Instrument [Line Items]                
Line of credit facility financial covenants combined leverage ratio 5.00%              
Line of credit facility financial covenants combined leverage ratio, thereafter 4.75%              
Credit Facility [Member] | Minimum [Member]                
Debt Instrument [Line Items]                
Line of credit facility financial covenants combined leverage ratio 1.00%              
Line of credit facility financial covenants combined leverage ratio, thereafter 1.00%