Environmental Liabilities and RIN (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Changes in environmental liabilities during the period
Balance at the beginning of the period	$ 59,271
Payments	(1,617)
Dispositions	(918)
Other adjustments	(437)
Balance at the end of the period	56,299
Environmental liabilities
Current portion		$ 5,009	$ 5,009
Long-term portion		51,290	54,262
Total environmental liabilities	$ 56,299	56,299	59,271
Renewable Identification Numbers (RINs)
RVO deficiency		300	900
Minimum
Renewable Identification Numbers (RINs)
Settlement period of RVO	1 year
Retail Gasoline Stations
Changes in environmental liabilities during the period
Balance at the beginning of the period	$ 55,493
Payments	(1,538)
Dispositions	(918)
Other adjustments	(437)
Balance at the end of the period	52,600
Environmental liabilities
Total environmental liabilities	52,600	52,600	55,493
Terminals
Changes in environmental liabilities during the period
Balance at the beginning of the period	3,778
Payments	(79)
Balance at the end of the period	3,699
Environmental liabilities
Total environmental liabilities	$ 3,699	$ 3,699	$ 3,778