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v3.7.0.1

Subsequent Events (Narrative) (Details) $ / shares in Units, $ in Thousands |  |  | 2 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Feb. 17, 2017 USD ($) well | Feb. 14, 2017 USD ($) | Mar. 01, 2017 USD ($) a Boe | Dec. 31, 2016 USD ($) $ / shares | Dec. 31, 2015 USD ($) $ / shares | Dec. 31, 2014 USD ($) $ / shares
Related Party Transaction [Line Items] |  |  |  |  |  |
Ownership percentage |  |  |  | 100.00% |  |
Net (income) loss attributable to non-controlling interest in subsidiaries |  |  |  | $ 364 | $ 261 | $ (17)
Net (loss) income |  |  |  | $ 97,421 | $ 679,785 | $ (110,771)
Diluted (usd per share) | $ / shares |  |  |  | $ 1.07 | $ 8.34 | $ (1.56)
Subsequent Event [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Number of gross acres in acreage acquired | a |  |  | 13,900 |  |  |
Number of net acres in acreage acquired | a |  |  | 8,200 |  |  |
Product acquired (in BOE) | Boe |  |  | 1,000 |  |  |
Total consideration given |  |  | $ 111,000 |  |  |
Fulcrum Delaware Water Resources [Member] | Subsequent Event [Member] | Corporate Joint Venture [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Payments to acquire interest in joint venture |  | $ 2,600 |  |  |  |
San Mateo Midstream [Member] | Subsequent Event [Member] | Corporate Joint Venture [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Ownership percentage | 51.00% |  |  |  |  |
Payment of initial operating capital | $ 5,100 |  |  |  |  |
Proceeds received in connection with formation of joint venture | 176,400 |  |  |  |  |
Deferred performance incentives | $ 73,500 |  |  |  |  |
Deferred performance incentives, term | 5 years |  |  |  |  |
Additional amount committed to spend to expand the midstream operations and asset base | $ 140,000 |  |  |  |  |
Contractual obligation | 273,500 |  |  |  |  |
San Mateo Midstream [Member] | Subsequent Event [Member] | Five Point [Member] | Corporate Joint Venture [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Payments to acquire interest in joint venture | $ 176,400 |  |  |  |  |
Ownership percentage | 49.00% |  |  |  |  |
Proceeds received in connection with formation of joint venture | $ 171,500 |  |  |  |  |
San Mateo Midstream [Member] | Rustler Breaks Asset Area [Member] | Subsequent Event [Member] | Corporate Joint Venture [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Number of wells contributed to joint venture | well | 1 |  |  |  |  |
Contractual obligation term | 15 years |  |  |  |  |
San Mateo Midstream [Member] | Wolf Asset Area [Member] | Subsequent Event [Member] | Corporate Joint Venture [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Number of wells contributed to joint venture | well | 3 |  |  |  |  |
San Mateo Midstream [Member] | Rustler Breaks and Wolf Asset Area [Member] | Subsequent Event [Member] | Corporate Joint Venture [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Contractual obligation term | 15 years |  |  |  |  |
Adjustment [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Net (income) loss attributable to non-controlling interest in subsidiaries |  |  |  | $ 4,500 |  |
Diluted (usd per share) | $ / shares |  |  |  | $ 0.05 |  |
Pro Forma [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Net (income) loss attributable to non-controlling interest in subsidiaries |  |  |  | $ 4,900 |  |
Net (loss) income |  |  |  | $ 102,000 |  |
Diluted (usd per share) | $ / shares |  |  |  | $ 1.12 |  |

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