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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Major Customers and Concentration of Credit Risk (Details) - Revenues - Customer Concentration Risk	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
ExxonMobil Corporation
Major Customers and Concentration of Credit Risk
Major customer percentage of total revenue (as a percent)	26.00%	20.00%	15.00%
Marathon Petroleum Corporation
Major Customers and Concentration of Credit Risk
Major customer percentage of total revenue (as a percent)			12.00%
BP p.l.c. and Subsidiaries
Major Customers and Concentration of Credit Risk
Major customer percentage of total revenue (as a percent)	10.00%		10.00%