Quarterly report [Sections 13 or 15(d)]

Summary of Significant Accounting Policies - Additional Information (Details)

v3.25.2
Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Schedule Of Accounting Policies [Line Items]          
Contract cost, amortization period 1 year   1 year    
Capitalized costs $ 7,400   $ 7,400   $ 6,700
Fuel revenue and fuel costs included fuel taxes 281,162 $ 301,030 541,062 $ 573,230  
Fuel Cost [Member]          
Schedule Of Accounting Policies [Line Items]          
Amortization expense 500 900 400 800  
Amortization Expense [Member]          
Schedule Of Accounting Policies [Line Items]          
Amortization expense 1,600 $ 1,300 3,000 $ 2,400  
Prepaid Incentives [Member]          
Schedule Of Accounting Policies [Line Items]          
Capitalized costs $ 47,700   $ 47,700   $ 43,800