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v3.22.2.2

Segment Reporting - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Segment Reporting [Abstract] |  |  |  |
Asset optimization revenue | $ 22.6 | $ 9.6 | $ 68.4 | $ 43.1
Asset optimization cost of revenues | $ 20.9 | $ 9.9 | $ 68.9 | $ 43.6

X
- Definition Asset Optimization, Cost of Revenues + References No definition available. + Details
Name: | spke_AssetOptimizationCostofRevenues
Namespace Prefix: | spke_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Asset Optimization Revenue, Gross + References No definition available. + Details
Name: | spke_AssetOptimizationRevenueGross
Namespace Prefix: | spke_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_SegmentReportingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration