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Equity Investments - Investments Accounted for by the Equity Method (Details) - USD ($) |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
May 01, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | May 31, 2018 | Jun. 05, 2017 | May 31, 2017 | Dec. 31, 2014
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Carrying value of equity investments |  | $ 236,121,000 | $ 302,112,000 |  |  |  |  |
(Income) loss from equity method investments |  | (49,904,000) | 17,780,000 | $ 37,376,000 |  |  |  |
Distributions from equity method investments |  | $ 446,000 | 7,376,000 | 18,147,000 |  |  |  |
Investment in Tatex Thailand II, LLC |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Approximate Ownership % |  | 23.50% |  |  |  |  |  |
Carrying value of equity investments |  | $ 0 | 0 |  |  |  |  |
(Income) loss from equity method investments |  | (241,000) | (549,000) | (412,000) |  |  |  |
Distributions from equity method investments |  | $ 200,000 | 500,000 |  |  |  |  |
Investment in Tatex Thailand III, LLC |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Approximate Ownership % |  | 0.00% |  |  |  |  |  |
Carrying value of equity investments |  | $ 0 | 0 |  |  |  |  |
(Income) loss from equity method investments |  | $ 0 |  | 0 |  |  |  |
Distributions from equity method investments |  |  | 183,000 |  |  |  |  |
Investment in Grizzly Oil Sands ULC |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Approximate Ownership % |  | 24.9999% |  |  |  |  |  |
Carrying value of equity investments |  | $ 44,259,000 | 57,641,000 |  |  |  |  |
(Income) loss from equity method investments |  | $ 510,000 | 2,189,000 | 25,150,000 |  |  |  |
Investment in Timber Wolf Terminals LLC |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Approximate Ownership % |  | 0.00% |  |  |  |  |  |
Carrying value of equity investments |  |  | 983,000 |  |  |  |  |
(Income) loss from equity method investments |  | $ 536,000 | 8,000 | 8,000 |  |  |  |
Distributions from equity method investments |  | $ 400,000 |  |  |  |  |  |
Investment in Windsor Midstream LLC |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Approximate Ownership % |  | 22.50% |  |  |  |  |  |
Carrying value of equity investments |  | $ 39,000 | 30,000 |  |  |  |  |
(Income) loss from equity method investments |  | (9,000) | 25,233,000 | (13,618,000) |  |  |  |
Distributions from equity method investments |  | $ 0 | 500,000 |  |  |  |  |
Investment in Stingray Cementing LLC |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Approximate Ownership % |  | 0.00% |  |  |  |  | 50.00% |
Carrying value of equity investments |  | $ 0 |  |  |  |  |  |
(Income) loss from equity method investments |  | $ 0 | 205,000 | 263,000 |  |  |  |
Investment in Blackhawk Midstream LLC |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Approximate Ownership % |  | 0.00% |  |  |  |  |  |
Carrying value of equity investments |  | $ 0 | 0 |  |  |  |  |
(Income) loss from equity method investments |  |  | 0 | 0 |  |  |  |
Distributions from equity method investments |  | $ 38,000 |  |  |  |  |  |
Investment in Stingray Energy Services LLC |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Approximate Ownership % |  | 0.00% |  |  |  |  | 50.00% |
Carrying value of equity investments |  | $ 0 | 0 |  |  |  |  |
(Income) loss from equity method investments |  | $ 0 | 282,000 | 1,044,000 |  |  |  |
Investment in Sturgeon Acquisitions LLC |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Approximate Ownership % |  | 0.00% |  |  |  |  |  | 25.00%
Carrying value of equity investments |  | $ 0 | 0 |  |  |  |  |
(Income) loss from equity method investments |  |  | (71,000) | $ 993,000 |  |  |  |
Investment in Mammoth Energy Services, Inc. |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Approximate Ownership % |  |  |  | 24.20% |  | 25.10% |  | 30.50%
Carrying value of equity investments |  | 191,823,000 | 165,715,000 |  |  |  |  |
(Income) loss from equity method investments |  | $ (49,969,000) | (11,288,000) | $ 24,037,000 |  |  |  |
Distributions from equity method investments |  |  | 2,500,000 |  |  |  |  |
Investment in Strike Force Midstream LLC |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Approximate Ownership % | 25.00% | 0.00% |  |  | 25.00% |  |  |
Carrying value of equity investments |  | $ 0 | 77,743,000 |  |  |  |  |
(Income) loss from equity method investments |  | (693,000) | 1,954,000 | $ (89,000) |  |  |  |
Distributions from equity method investments | $ 175,000,000 | $ 800,000 | $ 6,900,000 |  |  |  |  |

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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