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Fair Value Measurements (Tables) | 6 Months Ended
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Jun. 30, 2016
Fair Value Disclosures [Abstract] |
Schedule of assets and liabilities measured at fair value on a recurring basis during the applicable period | The following assets and liabilities were measured at fair value on a recurring basis during the applicable period:
|  |  |  | Fair value measurements at reporting date using
Description |  | As of June 30, 2016 |  | Quoted prices in active markets for identical assets (Level 1) |  | Significant other observable inputs (Level 2) |  | Significant unobservable inputs (Level 3)
|  | (Thousands)
Assets |  |  |  |  |  |  |  |  |  |  |  |
Derivative instruments, at fair value |  | $ | 136,591 |  |  | $ | — |  |  | $ | 136,591 |  |  | $ | — |
Liabilities |  |  |  |  |  |  |  |  |  |  |
Derivative instruments, at fair value |  | $ | 110,960 |  |  | $ | — |  |  | $ | 110,960 |  |  | $ | — |
|  |  |  | Fair value measurements at reporting date using
Description |  | As of December 31, 2015 |  | Quoted prices in active markets for identical assets (Level 1) |  | Significant other observable inputs (Level 2) |  | Significant unobservable inputs (Level 3)
|  | (Thousands)
Assets |  |  |  |  |  |  |  |  |  |  |  |
Derivative instruments, at fair value |  | $ | 417,397 |  |  | $ | — |  |  | $ | 417,397 |  |  | $ | — |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |
Derivative instruments, at fair value |  | $ | 23,434 |  |  | $ | — |  |  | $ | 23,434 |  |  | $ | — |

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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