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, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
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Natural gas transportation contracts | ||||
Concentration Risk [Line Items] | ||||
Concentration percentage | 64.60% | 52.70% | 67.20% | 57.50% |
Natural gas distribution contracts | ||||
Concentration Risk [Line Items] | ||||
Concentration percentage | 26.00% | 39.20% | 25.30% | 36.20% |
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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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