COMBINED AND CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE (LOSS) INCOME (Parenthetical) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Optimization Revenues - Affiliates	$ 2,318,000us-gaap_OtherSalesRevenueNet	$ 314,000us-gaap_OtherSalesRevenueNet	$ (1,136,000)us-gaap_OtherSalesRevenueNet
Optimization Cost of Revenues - Affiliates	282,300,000spke_CostofOtherSalesRevenue	192,100,000spke_CostofOtherSalesRevenue	249,700,000spke_CostofOtherSalesRevenue
Retail cost of revenues	258,616,000us-gaap_CostOfServicesEnergyServices	233,026,000us-gaap_CostOfServicesEnergyServices	279,506,000us-gaap_CostOfServicesEnergyServices
General and administrative	45,880,000us-gaap_GeneralAndAdministrativeExpense	35,020,000us-gaap_GeneralAndAdministrativeExpense	47,321,000us-gaap_GeneralAndAdministrativeExpense
Affiliated Entity
Retail Revenues - Affiliates	2,170,000	4,022,000	1,382,000
Optimization Revenues - Affiliates	12,842,000	14,940,000	8,334,000
Optimization Cost of Revenues - Affiliates	30,910,000	15,928,000	568,000
Retail cost of revenues	13,000	55,000	254,000
General and administrative	$ 100,000	$ 100,000	$ 800,000

Cost of Other Sales Revenue

No definition available.

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- Definition

Cost incurred in providing energy services during the reporting period.

+ References

+ Details

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- Definition

The aggregate revenue, whether regulated or unregulated, derived from the generation, transmission and distribution of electricity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(b))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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- Definition

The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

+ Details

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- Definition

Revenues from the sale of other goods or rendering of other services, not elsewhere specified in the taxonomy; net of (reduced by) sales adjustments, returns, allowances, and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(a),(d))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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