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Equity Investments (Investments Accounted For By The Equity Method) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Dec. 31, 2013 | Dec. 17, 2012
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity investments | $ 499,419 |  | $ 440,068 |
(Income) loss from equity method investments | (128,475) | (61,210) |  |
Tatex Thailand II, LLC [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Approximate Ownership percentage | 23.50% |  |  |
Equity investments |  |  |  |
(Income) loss from equity method investments | 0 | 0 |  |
Tatex Thailand III, LLC [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Approximate Ownership percentage | 17.90% |  |  |
Equity investments | 10,725 |  | 10,774 |
(Income) loss from equity method investments | 49 | 18 |  |
Grizzly Oil Sands ULC [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Approximate Ownership percentage | 25.00% |  |  |
Equity investments | 190,263 |  | 191,473 |
(Income) loss from equity method investments | 2,001 | 532 |  |
Bison Drilling And Field Services LLC [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Approximate Ownership percentage | 40.00% |  |  |
Equity investments | 22,608 |  | 12,318 |
(Income) loss from equity method investments | 1,933 | (148) |  |
Muskie Holdings LLC [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Approximate Ownership percentage | 25.00% |  |  |
Equity investments | 8,011 |  | 7,544 |
(Income) loss from equity method investments | 534 | 441 |  |
Timber Wolf Terminals LLC [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Approximate Ownership percentage | 50.00% |  |  |
Equity investments | 1,001 |  | 1,001 |
(Income) loss from equity method investments | 0 | 8 |  |
Windsor Midstream LLC [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Approximate Ownership percentage | 22.50% |  |  |
Equity investments | 13,195 |  | 10,632 |
(Income) loss from equity method investments | (168) | (384) |  |
Stingray Pressure Pumping LLC [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Approximate Ownership percentage | 50.00% |  |  |
Equity investments | 18,872 |  | 19,624 |
(Income) loss from equity method investments | 513 | (703) |  |
Stingray Cementing LLC [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Approximate Ownership percentage | 50.00% |  |  |
Equity investments | 3,067 |  | 3,291 |
(Income) loss from equity method investments | 95 | 22 |  |
Blackhawk Midstream LLC [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Approximate Ownership percentage | 50.00% |  |  |
Equity investments | 0 |  | 0 |
(Income) loss from equity method investments | (84,787) | 39 |  |
Stingray Logistics LLC [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Approximate Ownership percentage | 50.00% |  |  |
Equity investments | 821 |  | 903 |
(Income) loss from equity method investments | 81 | 26 |  |
Diamondback Energy, Inc [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Approximate Ownership percentage | 6.70% |  |  |
Equity investments | 227,474 |  | 178,708 | 138,500
(Income) loss from equity method investments | (48,767) | (61,096) |  |
Stingray Energy Services LLC [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Approximate Ownership percentage | 50.00% |  |  |
Equity investments | 3,382 |  | 3,800 |
(Income) loss from equity method investments | $ 41 | $ 35 |  |

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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