Acquisitions and Divestitures - Additional Information 2017 Divestiture (Details) - USD ($) |
3 Months Ended | 6 Months Ended | |||||
---|---|---|---|---|---|---|---|
Apr. 04, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Jun. 30, 2017 |
Jun. 30, 2016 |
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Business Divestitures [Line Items] | |||||||
Loss from sale of VGS | [1] | $ (100,000) | $ (16,200,000) | $ (900,000) | |||
Venice Gathering System, L.L.C. [Member] | Not Qualify as Discontinued Operations [Member] | |||||||
Business Divestitures [Line Items] | |||||||
Subsidiary ownership interest sale percentage | 100.00% | ||||||
Proceeds from divestiture of businesses | $ 400,000 | ||||||
Loss from sale of VGS | $ (16,100,000) | $ (16,100,000) | |||||
Impact on net income from VGS divestiture | $ 0 | ||||||
Venice Energy Services Company, L.L.C. [Member] | |||||||
Business Divestitures [Line Items] | |||||||
Ownership interest | 76.80% | 76.80% | |||||
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