Transportation and Distribution Revenue - Schedules of Concentration of Risk (Details) - Product and services - Revenue |
3 Months Ended | 9 Months Ended | ||
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Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
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Crude oil transportation revenue | ||||
Concentration Risk [Line Items] | ||||
Concentration percentage | 84.60% | 0.00% | 80.70% | 0.00% |
Natural gas transportation revenue | ||||
Concentration Risk [Line Items] | ||||
Concentration percentage | 11.40% | 64.60% | 13.50% | 67.20% |
Natural gas distribution revenue | ||||
Concentration Risk [Line Items] | ||||
Concentration percentage | 3.50% | 26.00% | 4.30% | 25.30% |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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