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Transactions with Affiliates (Details) - USD ($) |  | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Dec. 27, 2016 | Jan. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Jul. 31, 2015 | Jul. 08, 2015
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Accounts receivable - affiliates | [1] |  |  | $ 2,624,000 |  | $ 1,840,000 |  |  |  |
Accounts payable - affiliates | [1] |  |  | 3,775,000 |  | 1,962,000 |  |  |  |
Asset optimization revenues - affiliates | [3] |  |  | (586,000) | [2] | 1,494,000 | [4] | $ 2,318,000 |  |
Cost of revenues |  |  |  | 133,600,000 |  | 152,600,000 |  | 282,300,000 |  |
Retail cost of revenues | [5] |  |  | 344,944,000 | [2] | 241,188,000 | [4] | 258,616,000 |  |
General and administrative (less than) | [6] |  |  | 84,964,000 | [2] | 61,682,000 | [4] | 45,880,000 |  |
Net capital distributions |  |  |  | 0 | [7] | 0 | [8] | 36,406,000 |  |
Payments of Distributions to Affiliates |  |  |  | 0 | [7] | 0 | [8] | 47,554,000 |  |
Contributions from NuDevco |  |  |  | 0 | [7] | 129,000 | [8] | 0 |  |
Adjustments to Additional Paid in Capital, Disgorgement of Short-Swing Profit |  |  |  | 1,605,000 |  |  |  |  |  |
Proceeds from disgorgement of stockholders short-swing profits |  |  |  | $ 941,000 | [7] | 0 | [8] | 0 |  |
Tax receivable agreement, net cash savings, percentage |  |  |  | 15.00% |  |  |  |  |  |
Subordinated debt—affiliate | [1] |  |  | $ 5,000,000 |  | 0 |  |  |  |
Convertible Debt | Censtar Convertible Debt | CenStar |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Issued amount |  |  |  |  |  |  |  |  |  | $ 2,100,000.0
Convertible Debt | Oasis Note | Oasis |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Issued amount |  |  |  |  |  |  |  |  | $ 5,000,000.0 |
Subordinated Debt | Retailco |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Subordinated borrowing, interest rate |  | 5.00% |  |  |  |  |  |  |  |
Subordinated debt—affiliate |  | $ 25,000,000 |  | 0 |  |  |  |  |  |
Subordinated debt, advances |  | $ 1,000,000 |  |  |  |  |  |  |  |
Subordinated debt, interest rate on advances |  | 5.00% |  |  |  |  |  |  |  |
Minimum availability under the borrowing base |  | $ 5,000,000 |  |  |  |  |  |  |  |
Affiliated Entity |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Prepaid assets - affiliate |  |  |  | 0 |  | 210,000 |  |  |  |
Asset optimization revenues - affiliates |  |  |  | 154,000 |  | 1,101,000 |  | 12,842,000 |  |
Cost of revenues |  |  |  |  |  |  |  | 30,910,000 |  |
Cost of Revenue |  |  |  | 1,633,000 |  | 11,285,000 |  | 30,300,000 |  |
Retail cost of revenues |  |  |  | 9,000 |  | 17,000 |  | 13,000 |  |
Sales of electricity to affiliate |  |  |  | 0 |  | 0 |  | 2,170,000 |  |
General and administrative (less than) |  |  |  | 15,700,000 |  | 0 |  | 100,000 |  |
Affiliated Entity | Marlin Transportation Agreement |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Retail cost of revenues |  |  |  | 100,000 |  | 100,000 |  | 100,000 |  |
Affiliated Entity | Affiliate Derivative Instruments |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Cost of revenues |  |  |  | 0 |  | 600,000 |  |  |  |
Affiliated Entity | Allocated Overhead Costs |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
General and administrative (less than) |  |  |  | 17,000,000 |  | 2,100,000 |  | 5,100,000 |  |
Affiliated Entity | Residual Commissions |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
General and administrative (less than) |  |  |  |  |  | 100,000 |  | 100,000 |  |
NuDevco Retail and Retailco LLC |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Net capital distributions |  |  |  | 23,700,000.0 |  | $ 15,600,000 |  | $ 36,400,000 |  |
Contributions from NuDevco |  |  |  | 100,000 |  |  |  |  |  |
NuDevco Retail and Retailco LLC | Payment of Income Taxes Incurred by the Company |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Payments of Distributions to Affiliates |  |  |  | $ 11,300,000 |  |  |  |  |  |
NuDevco Retail Holdings and NuDevco Retail |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Tax receivable agreement, net cash savings, percentage |  |  |  | 85.00% |  |  |  |  |  |
Tax receivable agreement, deferral period (in years) |  |  |  | 5 years |  |  |  |  |  |
Tax receivable agreement, coverage percentage |  |  |  | 130.00% |  |  |  |  |  |
Tax receivable agreement, target dividend (in dollars per share) |  |  |  | $ 0.3625 |  |  |  |  |  |
Retailco |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from disgorgement of stockholders short-swing profits |  |  |  | $ 900,000 |  |  |  |  |  |
Retailco | Affiliated Entity | Allocated Overhead Costs |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
General and administrative (less than) |  |  |  | 14,700,000 |  |  |  |  |  |
Retailco | Affiliated Entity | Property and Equipment Capitalized |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Additions |  |  |  | 1,300,000 |  |  |  |  |  |
Retailco and NuDevco Retail | Tax Receivable Agreement |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Accounts payable - affiliates |  |  |  | 1,400,000 |  |  |  |  |  |
Subsequent Event | Retailco |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from disgorgement of stockholders short-swing profits |  |  | $ 700,000 |  |  |  |  |  |  |
Additional Paid-In Capital |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Adjustments to Additional Paid in Capital, Disgorgement of Short-Swing Profit |  |  |  | $ 1,605,000 |  |  |  |  |  |
[1] | See Note 4 "Equity" for disclosure of our variable interest entity in Spark HoldCo, LLC.
[2] | Financial information has been recast to include results attributable to the acquisition of Major Energy Companies by an affiliate on April 15, 2016. See Notes 2 and 3 "Basis of Presentation and Summary of Significant Accounting Policies" and "Acquisitions," respectively, for further discussion.
[3] | Net asset optimization revenues includes asset optimization (expense)/revenues—affiliates of $154, $1,101 and $12,842 for the years ended December 31, 2016, 2015 and 2014, respectively, and asset optimization revenues—affiliates cost of revenues of $1,633, $11,285 and $30,910 for the years ended December 31, 2016, 2015 and 2014, respectively.
[4] | (2) Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC from an affiliate on May 12, 2015. See Notes 2 and 3 "Basis of Presentation and Summary of Significant Accounting Policies" and "Acquisitions", respectively, for further discussion.
[5] | Retail cost of revenues includes retail cost of revenues—affiliates of $9, $17 and $13 for the years December 31, 2016, 2015 and 2014, respectively.
[6] | General and administrative includes general and administrative expense—affiliates of $15,700, $0 and less than $100 for the years ended December 31, 2016, 2015 and 2014, respectively.
[7] | Financial information has been recast to include results attributable to the acquisition of the Major Energy Companies from an affiliate on August 23, 2016. See Notes 2 and 3 "Basis of Presentation and Summary of Significant Accounting Policies" and "Acquisitions," respectively, for further discussion.
[8] | Financial information has been recast to include results attributable to the acquisition of Oasis Power Holdings LLC by an affiliate on May 12, 2015. See Notes 2 "Basis of Presentation and Summary of Significant Accounting Policies" for further discussion.

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