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Business Segment Information - Summarized Financial Information of Segments (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Dec. 31, 2015
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | $ 130,283 | $ 180,387 |
Operating income (loss) |  | (75,215) | (33,635) |
Other income (expense) |  | (16,869) | 8,218 |
Loss before income taxes |  | (92,084) | (25,417) |
Property, plant and equipment, net |  | 5,177,169 |  | $ 5,218,242
Total assets |  | 5,560,268 |  | 5,649,375
Assets held for sale |  | 25,845 |  | 26,728
Exploration and Production [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 117,315 | 173,859 |
Well Services [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 30,888 | 50,905 |
Midstream Services [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 29,818 | 17,642 |
Operating Segments [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 130,283 | 180,387 |
Operating income (loss) |  | (75,215) | (33,635) |
Other income (expense) |  | (16,869) | 8,218 |
Loss before income taxes |  | (92,084) | (25,417) |
Property, plant and equipment, net |  | 5,177,169 |  | 5,218,242
Total assets | [1] | 5,560,268 |  | 5,649,375
Operating Segments [Member] | Exploration and Production [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 117,315 | 173,859 |
Operating income (loss) |  | (88,877) | (42,247) |
Other income (expense) |  | (16,887) | 8,239 |
Loss before income taxes |  | (105,764) | (34,008) |
Property, plant and equipment, net |  | 4,994,366 |  | 5,057,311
Total assets | [1] | 5,367,881 |  | 5,478,439
Assets held for sale |  | 25,800 |  | 26,700
Operating Segments [Member] | Well Services [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 5,985 | 2,708 |
Operating income (loss) |  | 4,006 | 9,610 |
Other income (expense) |  | 5 | (2) |
Loss before income taxes |  | 4,011 | 9,608 |
Property, plant and equipment, net |  | 57,821 |  | 61,402
Total assets | [1] | 62,076 |  | 66,952
Operating Segments [Member] | Midstream Services [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 6,983 | 3,820 |
Operating income (loss) |  | 15,144 | 9,308 |
Other income (expense) |  | 13 | (19) |
Loss before income taxes |  | 15,157 | 9,289 |
Property, plant and equipment, net |  | 295,913 |  | 264,956
Total assets | [1] | 301,242 |  | 269,411
Assets held for sale |  | 34 |  |
Segment Reconciling Items [Member] | Exploration and Production [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 0 | 0 |
Segment Reconciling Items [Member] | Well Services [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 24,903 | 48,197 |
Segment Reconciling Items [Member] | Midstream Services [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | 22,835 | 13,822 |
Intersegment Eliminations [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total revenues |  | (47,738) | (62,019) |
Operating income (loss) |  | (5,488) | (10,306) |
Other income (expense) |  | 0 | 0 |
Loss before income taxes |  | (5,488) | $ (10,306) |
Property, plant and equipment, net |  | (170,931) |  | (165,427)
Total assets | [1] | $ (170,931) |  | $ (165,427)
[1] | As of March 31, 2016, total assets included assets held for sale of $25.8 million in the exploration and production segment and $34,000 in the midstream services segment. As of December 31, 2015, total assets included assets held for sale of $26.7 million in the exploration and production segment (see Note 7 – Assets Held for Sale). For the periods presented, the intercompany receivables (payables) for all segments were reclassified to capital contributions from (distributions to) parent and not included in total assets.

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