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Debt - Prior to the IPO - NuDevco Note (Details) - USD ($) | Dec. 31, 2016 | Aug. 01, 2014
--- | --- | ---
NuDevco Retail Holdings | Spark HoldCo |  |
Debt Instrument [Line Items] |  |
Investment in affiliate transferred | $ 50,000 | $ 50,000

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- Details
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- Details
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