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Organization and Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2019
Organization and Accounting Policies [Abstract] |
Reconciliation of Cash, Cash Equivalents, and Restricted Cash |
|  | September 30, 2019 |  | December 31, 2018
|  | (in thousands)
Cash and cash equivalents |  | $ | 57,227 |  | $ | 33,360
Restricted cash - current |  |  | 769 |  |  | 804
Restricted cash - non-current |  |  | 924 |  |  | 920
Abandonment funding |  |  | 11,112 |  |  | 11,571
Total cash, cash equivalents and restricted cash shown in the condensed consolidated balance sheets |  | $ | 70,032 |  | $ | 46,655
Rollforward Analysis of the Allowance Against Accounts Receivable Balance |
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2019 |  |  | 2018 |  | 2019 |  | 2018
|  | (in thousands)
Allowance for bad debt |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of year |  | $ | (1,876) |  | $ | (6,948) |  | $ | (2,535) |  | $ | (7,033)
Bad debt recovery (charge) |  |  | (54) |  |  | 157 |  |  | (30) |  |  | 68
Reclassification of leasehold costs related to signing bonus |  |  | — |  |  | 4,197 |  |  | — |  |  | 4,197
Adjustment associated with settlement of customs audit |  |  | — |  |  | — |  |  | 623 |  |  | —
Foreign currency gain |  |  | 53 |  |  | 13 |  |  | 65 |  |  | 187
Balance at end of period |  | $ | (1,877) |  | $ | (2,581) |  | $ | (1,877) |  | $ | (2,581)
Assets and Liabilities Measured on Recurring Basis |
|  |  |  |  | As of September 30, 2019
|  | Balance Sheet Line |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  |  |  |  | (in thousands)
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative asset commodity swaps |  |  | Prepayments and other |  | $ | — |  | $ | 3,730 |  | $ | — |  | $ | 3,730
|  |  |  |  | $ | — |  | $ | 3,730 |  | $ | — |  | $ | 3,730
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SARs liability |  |  | Accrued liabilities |  | $ | — |  | $ | 2,516 |  | $ | — |  | $ | 2,516
SARs liability |  |  | Other long-term liabilities |  |  | — |  |  | 652 |  |  | — |  |  | 652
|  |  |  |  | $ | — |  | $ | 3,168 |  | $ | — |  | $ | 3,168
|  |  |  |  | As of December 31, 2018
|  | Balance Sheet Line |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  |  |  |  | (in thousands)
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative asset commodity swaps |  |  | Prepayments and other |  | $ | — |  | $ | 3,520 |  | $ | — |  | $ | 3,520
|  |  |  |  | $ | — |  | $ | 3,520 |  | $ | — |  | $ | 3,520
Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SARs liability |  |  | Accrued liabilities |  | $ | — |  | $ | 1,007 |  | $ | — |  | $ | 1,007
SARs liability |  |  | Other long-term liabilities |  |  | — |  |  | 625 |  |  | — |  |  | 625
|  |  |  |  | $ | — |  | $ | 1,632 |  | $ | — |  | $ | 1,632

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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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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