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Disclosures About Fair Value of Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2017
Fair Value Disclosures [Abstract] |
Schedule Of Fair Value, Assets And Liabilities Measured On Recurring Basis | The following fair value hierarchy table presents information about the Company’s assets and liabilities measured at fair value on a recurring basis as of December 31, 2017 and 2016:
|  | Quoted Prices in Active Markets For Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Balance as of December 31, 2017
Assets |  |  |  |  |  |  |  |
Cash equivalents |  | $ | 93,541 |  |  | $ | — |  |  | $ | — |  |  | $ | 93,541 |
Short-term Investments |  | — |  |  | 19,588 |  |  | — |  |  | $ | 19,588 |
Derivatives |  | — |  |  | 35,378 |  |  | — |  |  | 35,378 |
Total Assets |  | $ | 93,541 |  |  | $ | 54,966 |  |  | $ | — |  |  | $ | 148,507 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |
Derivatives |  | $ | — |  |  | $ | 23,545 |  |  | $ | — |  |  | $ | 23,545 |
Share-based compensation |  | — |  |  | 1,483 |  |  | — |  |  | 1,483 |
Total Liabilities |  | $ | — |  |  | $ | 25,028 |  |  | $ | — |  |  | $ | 25,028 |
|  | Quoted Prices in Active Markets For Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3) |  | Balance as of December 31, 2016
Assets |  |  |  |  |  |  |  |
Cash equivalents - Investment funds |  | $ | 132,040 |  |  | $ | — |  |  | $ | — |  |  | $ | 132,040 |
Total Assets |  | $ | 132,040 |  |  | $ | — |  |  | $ | — |  |  | $ | 132,040 |
Liabilities |  |  |  |  |  |  |  |  |  |  |  |
Derivatives |  | $ | — |  |  | $ | 30,591 |  |  | $ | — |  |  | $ | 30,591 |
Share-based compensation |  | — |  |  | 512 |  |  | — |  |  | 512 |
Secured loan agreement |  | — |  |  | 164,385 |  |  | — |  |  | 164,385 |
Total Liabilities |  | $ | — |  |  | $ | 195,488 |  |  | $ | — |  |  | $ | 195,488 |

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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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