COMBINED AND CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net (loss) income	$ (4,265)us-gaap_ProfitLoss	$ 31,412us-gaap_ProfitLoss	$ 26,093us-gaap_ProfitLoss
Adjustments to reconcile net (loss) income to net cash flows provided by operating activities:
Depreciation and amortization expense	22,221	16,215	22,795
Deferred income taxes	(1,064)us-gaap_DeferredIncomeTaxExpenseBenefit	0us-gaap_DeferredIncomeTaxExpenseBenefit	0us-gaap_DeferredIncomeTaxExpenseBenefit
Stock based compensation	858us-gaap_ShareBasedCompensation	0us-gaap_ShareBasedCompensation	0us-gaap_ShareBasedCompensation
Amortization and write off of deferred financing costs	631	678	919
Bad debt expense	10,164us-gaap_ProvisionForDoubtfulAccounts	3,101us-gaap_ProvisionForDoubtfulAccounts	1,835us-gaap_ProvisionForDoubtfulAccounts
(Gain) loss on derivatives, net	14,535	(6,567)	21,485
Current period cash settlements on derivatives, net	3,479us-gaap_GainLossOnSaleOfDerivatives	(1,040)us-gaap_GainLossOnSaleOfDerivatives	(26,801)us-gaap_GainLossOnSaleOfDerivatives
Changes in assets and liabilities:
Increase in restricted cash	(707)	0	0
(Increase) decrease in accounts receivable	(11,283)	6,338	12,019
(Increase) decrease in accounts receivable-affiliates	5,563	13,369	(7,787)
(Increase) decrease in inventory	(3,711)us-gaap_IncreaseDecreaseInInventories	(599)us-gaap_IncreaseDecreaseInInventories	3,442us-gaap_IncreaseDecreaseInInventories
Increase in customer acquisition costs	(26,191)	(8,257)	(6,322)
(Increase) decrease in prepaid and other current assets	(6,905)	(1,917)	8,505
(Increase) decrease in other assets	(90)	144	345
Increase in intangible assets - customer acquisitions	(1,545)	0	0
Increase (decrease) in accounts payable and accrued liabilities	1,449	(7,879)	(11,394)
Increase (decrease) in accounts payable-affiliates	1,017	0	(1,295)
Increase (decrease) in other current liabilities	1,867	(518)	237
Decrease in other non-current liabilities	(149)	0	0
Net cash provided by operating activities	5,874	44,480	44,076
Cash flows from investing activities:
Purchases of property and equipment	(3,040)	(1,481)	(2,220)
Sale of property, plant and equipment-affiliates	0	0	577
Net cash used in investing activities	(3,040)	(1,481)	(1,643)
Cash flows from financing activities:
Borrowings on notes payable	78,500us-gaap_ProceedsFromNotesPayable	80,000us-gaap_ProceedsFromNotesPayable	39,500us-gaap_ProceedsFromNotesPayable
Payments on notes payable	(44,000)us-gaap_RepaymentsOfNotesPayable	(62,500)us-gaap_RepaymentsOfNotesPayable	(68,528)us-gaap_RepaymentsOfNotesPayable
Deferred financing costs	(402)us-gaap_PaymentsOfFinancingCosts	(532)us-gaap_PaymentsOfFinancingCosts	(441)us-gaap_PaymentsOfFinancingCosts
Member contribution (distributions), net	(36,406)	(59,337)	(10,435)
Proceeds from issuance of Class A common stock	50,220	0	0
Distributions of proceeds from Offering to affiliate	(47,554)	0	0
Payment of note payable to NuDevco	(50)	0	0
Offering costs	(2,667)us-gaap_PaymentsOfStockIssuanceCosts	0us-gaap_PaymentsOfStockIssuanceCosts	0us-gaap_PaymentsOfStockIssuanceCosts
Payment of distributions to Class B non-controlling unit holders	(2,584)us-gaap_PaymentsOfCapitalDistribution	0us-gaap_PaymentsOfCapitalDistribution	0us-gaap_PaymentsOfCapitalDistribution
Payment of dividends to Class A common shareholders	(721)us-gaap_PaymentsOfOrdinaryDividends	0us-gaap_PaymentsOfOrdinaryDividends	0us-gaap_PaymentsOfOrdinaryDividends
Net cash used in financing activities	(5,664)	(42,369)	(39,904)
Decreases in cash and cash equivalents	(2,830)	630	2,529
Cash and cash equivalents—beginning of period	7,189	6,559	4,030
Cash and cash equivalents—end of period	4,359	7,189	6,559
Non cash items:
Issuance of Class B common stock	28,486us-gaap_ConversionOfStockAmountIssued1	0us-gaap_ConversionOfStockAmountIssued1	0us-gaap_ConversionOfStockAmountIssued1
Liabilities retained by affiliate	29,000spke_LiabilitiesAssumedbyAffiliate	0spke_LiabilitiesAssumedbyAffiliate	0spke_LiabilitiesAssumedbyAffiliate
Tax benefit from tax receivable agreement	23,636	0	0
Liability due to tax receivable agreement	20,767	0	0
Initial allocation of non-controlling interest	22,232	0	0
Property and equipment purchase accrual	19	0
Interest	860us-gaap_InterestPaid	879us-gaap_InterestPaid	2,686us-gaap_InterestPaid
Taxes	$ 85us-gaap_IncomeTaxesPaid	$ 195us-gaap_IncomeTaxesPaid	$ 318us-gaap_IncomeTaxesPaid

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Future cash outflow to pay for purchases of fixed assets that have occurred.

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Cash outflow to owners or shareholders, excluding ordinary dividends. Includes special dividends.

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The cash outflow for loan and debt issuance costs.

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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