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Accrued Expenses And Other Long-term Liabilities - Schedule of Other Long-term Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Accrued Liabilities And Other Long Term Liabilities [Line Items]    
Security deposits $ 17,417 $ 12,812
Deferred fuel supplier rebates 9,328 9,266
Environmental liabilities 2,204 1,870
Interest rate swap contracts, less current portion [1] 1,427  
Other 2,199 1,676
Total other long-term liabilities $ 32,575 30,240
Circle K Stores Inc. [Member]    
Accrued Liabilities And Other Long Term Liabilities [Line Items]    
Accounts payable to Circle K [2]   $ 4,616
[1]

See Note 14 for information regarding the interest rate swap contracts entered into in 2020.
[2] See Note 16 for information regarding the noncurrent portion of our accounts payable with Circle K.