Summary of Significant Accounting Policies - Renewable Identification Numbers (RINs) (Details)	12 Months Ended
	Dec. 31, 2021 renewable_identification_number
Minimum
Renewable Identification Numbers [Line Items]
RINs per gallon	1.5
Allowed RINs per gallon	0
Maximum
Renewable Identification Numbers [Line Items]
RINs per gallon	1.7
Allowed RINs per gallon	2.5