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Summary of Significant Accounting Policies - Revenue from Contracts with Customers (Details) - Revenue from Contract with Customer Benchmark - Customer Concentration Risk	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SN EF Maverick, LLC
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)		15.50%	20.00%
Eighty Eight Oil
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)		11.70%
Shell Trading US Company
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)	18.30%	10.40%
Cokinos Energy Corporation
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)			18.10%
BP Products North America
Disaggregation of Revenue [Line Items]
Concentration risk (as a percent)			13.10%

X

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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-Publisher FASB
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