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Equity Investments (Investments Accounted For By The Equity Method) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Dec. 31, 2014 | Oct. 11, 2012
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity investments and investments in subsidiaries | $ 295,103 |  | $ 295,103 |  | $ 369,581 |
(Income) loss from equity method investments | $ 61,891 | $ 34,477 | $ 57,036 | $ (163,567) |  |
Tatex Thailand II, LLC [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 23.50% |  | 23.50% |  |  |
(Income) loss from equity method investments | $ 0 | (475) | $ 189 | (475) |  |
Tatex Thailand III, LLC [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 17.90% |  | 17.90% |  |  |
Equity investments and investments in subsidiaries | $ 0 |  | $ 0 |  |  |
(Income) loss from equity method investments | $ 0 | 47 | $ 0 | 217 |  |
Grizzly Oil Sands ULC [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 24.9999% |  | 24.9999% |  |  |
Equity investments and investments in subsidiaries |  |  |  |  | 180,218 |
(Income) loss from equity method investments | $ 58,653 | 4,633 | $ 71,289 | 8,862 |  |
Bison Drilling And Field Services LLC [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 0.00% |  | 0.00% |  |  |
(Income) loss from equity method investments | $ 0 | (1,273) | $ 0 | 331 |  |
Muskie Proppant LLC [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 0.00% |  | 0.00% |  |  |
(Income) loss from equity method investments | $ 0 | 55 | $ 0 | 488 |  |
Timber Wolf Terminals LLC [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 50.00% |  | 50.00% |  |  |
Equity investments and investments in subsidiaries | $ 1,000 |  | $ 1,000 |  | 1,013 |
(Income) loss from equity method investments | $ 0 | 7 | $ 13 | 7 |  |
Windsor Midstream LLC [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 22.50% |  | 22.50% |  |  |
Equity investments and investments in subsidiaries | $ 27,940 |  | $ 27,940 |  | 13,505 |
(Income) loss from equity method investments | $ (323) | (301) | $ (18,229) | (504) |  |
Stingray Pressure Pumping LLC [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 0.00% |  | 0.00% |  |  |
(Income) loss from equity method investments | $ 0 | (351) | $ 0 | 1,792 |  |
Stingray Cementing LLC [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 50.00% |  | 50.00% |  |  |
Equity investments and investments in subsidiaries | $ 2,127 |  | $ 2,127 |  | 2,647 |
(Income) loss from equity method investments | $ (12) | (12) | $ 160 | 189 |  |
Blackhawk Midstream LLC [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 48.50% |  | 48.50% |  |  |
Equity investments and investments in subsidiaries | $ 0 |  | $ 0 |  | 0 |
(Income) loss from equity method investments | $ 0 | 0 | $ (7,217) | (84,787) |  |
Stingray Logistics LLC [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 0.00% |  | 0.00% |  |  |
Equity investments and investments in subsidiaries | $ 0 |  | $ 0 |  | 0 |
(Income) loss from equity method investments | $ 0 | (256) | $ 0 | (413) |  |
Diamondback Energy, Inc [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 0.00% |  | 0.00% |  |  |
Equity investments and investments in subsidiaries | $ 0 |  | $ 0 |  | 0 | $ 138,500
(Income) loss from equity method investments | $ 0 | 32,412 | $ 0 | (89,300) |  |
Stingray Energy Services LLC [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 50.00% |  | 50.00% |  |  |
Equity investments and investments in subsidiaries | $ 5,718 |  | $ 5,718 |  | $ 5,718 |
(Income) loss from equity method investments | $ 218 | (9) | $ 539 | 26 |  |
Sturgeon Acquisitions LLC [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 25.00% |  | 25.00% |  | 25.00% |
Equity investments and investments in subsidiaries | $ 22,857 |  | $ 22,857 |  | $ 22,507 |
(Income) loss from equity method investments | $ (257) | 0 | $ (1,316) | 0 |  |
Mammoth Energy Partners LP [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Approximate Ownership % | 30.50% |  | 30.50% |  | 30.50% |
Equity investments and investments in subsidiaries | $ 135,971 |  | $ 135,971 |  | $ 143,973 |
(Income) loss from equity method investments | $ 3,612 | $ 0 | $ 11,608 | $ 0 |  |

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