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Derivatives (Tables) | 12 Months Ended
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Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Fair Value, Assets Measured on Recurring Basis | The following table provides information on the fair value amounts (in thousands) of these derivatives as of December 31, 2017 and 2016 and their placement within our consolidated balance sheets.
|  |  | December 31,
| Balance Sheet Location |  | 2017 |  | 2016
|  |  | Asset (Liability)
Commodity derivatives (1) | Prepaid and other current assets |  | $ | 2,814 |  |  | $ | — |
Commodity derivatives (1) | Other long-term assets |  | — |  |  | 2,748 |
Commodity derivatives | Other accrued liabilities |  | (39 | ) |  | (595 | )
J. Aron repurchase obligation derivative | Obligations under inventory financing agreements |  | (19,564 | ) |  | (20,000 | )
Interest rate derivatives | Prepaid and other current assets |  | 1,482 |  |  | 161 |
Interest rate derivatives | Other long-term assets |  | 2,328 |  |  | 3,377 |
Interest rate derivatives | Other accrued liabilities |  | — |  |  | (94 | )
_________________________________________________________
(1) | Does not include cash collateral of $0.2 million and $2.7 million recorded in Prepaid and other current assets and $7.0 million and $7.0 million in Other long-term assets as of December 31, 2017 and 2016, respectively.
Fair value amounts by hierarchy level as of December 31, 2017 and 2016 are presented gross in the tables below (in thousands):
| December 31, 2017
| Level 1 |  | Level 2 |  | Level 3 |  | Gross Fair Value |  | Effect of Counter-party Netting |  | Net Carrying Value on Balance Sheet (1)
Assets |  |  |  |  |  |  |  |  |  |  |
Commodity derivatives | $ | 557 |  |  | $ | 21,907 |  |  | $ | — |  |  | $ | 22,464 |  |  | $ | (19,650 | ) |  | $ | 2,814 |
Interest rate derivatives | — |  |  | 3,810 |  |  | — |  |  | 3,810 |  |  | — |  |  | 3,810 |
Total | $ | 557 |  |  | $ | 25,717 |  |  | $ | — |  |  | $ | 26,274 |  |  | $ | (19,650 | ) |  | $ | 6,624 |
Liabilities |  |  |  |  |  |  |  |  |  |  |
Common stock warrants | $ | — |  |  | $ | — |  |  | $ | (6,808 | ) |  | $ | (6,808 | ) |  | $ | — |  |  | $ | (6,808 | )
Commodity derivatives | (596 | ) |  | (19,093 | ) |  | — |  |  | (19,689 | ) |  | 19,650 |  |  | (39 | )
J. Aron repurchase obligation derivative | — |  |  | — |  |  | (19,564 | ) |  | (19,564 | ) |  | — |  |  | (19,564 | )
Total | $ | (596 | ) |  | $ | (19,093 | ) |  | $ | (26,372 | ) |  | $ | (46,061 | ) |  | $ | 19,650 |  |  | $ | (26,411 | )
| December 31, 2016
| Level 1 |  | Level 2 |  | Level 3 |  | Gross Fair Value |  | Effect of Counter-party Netting |  | Net Carrying Value on Balance Sheet (1)
Assets |  |  |  |  |  |  |  |  |  |  |
Commodity derivatives | $ | 190 |  |  | $ | 26,095 |  |  | $ | — |  |  | $ | 26,285 |  |  | $ | (23,537 | ) |  | $ | 2,748 |
Interest rate derivatives | — |  |  | 3,602 |  |  | — |  |  | 3,602 |  |  | (64 | ) |  | 3,538 |
Total | $ | 190 |  |  | $ | 29,697 |  |  | $ | — |  |  | $ | 29,887 |  |  | $ | (23,601 | ) |  | $ | 6,286 |
Liabilities |  |  |  |  |  |  |  |  |  |  |
Common stock warrants | $ | — |  |  | $ | — |  |  | $ | (5,134 | ) |  | $ | (5,134 | ) |  | $ | — |  |  | $ | (5,134 | )
Commodity derivatives | (54 | ) |  | (24,078 | ) |  | — |  |  | (24,132 | ) |  | 23,537 |  |  | (595 | )
J.Aron repurchase obligation derivative | — |  |  | — |  |  | (20,000 | ) |  | (20,000 | ) |  | — |  |  | (20,000 | )
Interest rate derivatives | — |  |  | (158 | ) |  | — |  |  | (158 | ) |  | 64 |  |  | (94 | )
Total | $ | (54 | ) |  | $ | (24,236 | ) |  | $ | (25,134 | ) |  | $ | (49,424 | ) |  | $ | 23,601 |  |  | $ | (25,823 | )
_________________________________________________________
(1) | Does not include cash collateral of $7.2 million and $9.7 million as of December 31, 2017 and 2016, respectively included on our consolidated balance sheets.
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location | The following table summarizes the pre-tax gains (losses) recognized in Net income (loss) on our consolidated statements of operations resulting from changes in fair value of derivative instruments not designated as hedges charged directly to earnings (in thousands):
|  |  | Year Ended December 31,
| Statement of Operations Classification |  | 2017 |  | 2016 |  | 2015
Commodity derivatives | Cost of revenues (excluding depreciation) |  | $ | (4,517 | ) |  | $ | (1,338 | ) |  | $ | 14,367 |
J. Aron repurchase obligation derivative | Cost of revenues (excluding depreciation) |  | 436 |  |  | (29,810 | ) |  | 12,654 |
Interest rate derivatives | Interest expense and financing costs, net |  | 489 |  |  | 2,729 |  |  | — |

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class 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 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of derivative instruments (including nonderivative instruments that are designated and qualify as hedging instruments) of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5618551-113959 + Details
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