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Organization And Accounting Policies (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2019
Organization and Accounting Policies [Abstract] |
Reconciliation Of Cash, Cash Equivalents, And Restricted Cash |
﻿ |  |  |  |  |  |
﻿ |  | March 31, |  | December 31,
﻿ |  | 2019 |  | 2018
﻿ |  | (in thousands)
﻿Cash and cash equivalents |  | $ | 46,195 |  | $ | 33,360
﻿Restricted cash - current |  |  | 788 |  |  | 804
﻿Restricted cash - non-current |  |  | 921 |  |  | 920
﻿Abandonment funding |  |  | 11,390 |  |  | 11,571
﻿Total cash, cash equivalents and restricted cash shown in the condensed consolidated statements of cash flows |  | $ | 59,294 |  | $ | 46,655
﻿
Rollforward Analysis of the Allowance Against Accounts Receivable Balance |
﻿ |  |  |  |  |  |
﻿ |  | Three Months Ended March 31,
﻿ |  | 2019 |  | 2018
﻿ |  | (in thousands)
﻿Allowance for bad debt |  |  |  |  |  |
﻿Balance at beginning of year |  | $ | (2,535) |  | $ | (7,033)
﻿Bad debt recovery (charge) |  |  | 29 |  |  | 56
﻿Adjustment associated with settlement of customs audit |  |  | 623 |  |  | —
﻿Foreign currency gain (loss) |  |  | 29 |  |  | (187)
﻿Balance at end of period |  | $ | (1,854) |  | $ | (7,164)
﻿
Assets And Liabilities Measured On Recurring Basis |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  | As of March 31, 2019
﻿ |  | Balance Sheet Line |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
﻿ |  |  |  |  | (in thousands)
﻿Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Derivative asset commodity swaps |  |  | Prepayments and other |  | $ | — |  | $ | 477 |  | $ | — |  | $ | 477
﻿ |  |  |  |  | $ | — |  | $ | 477 |  | $ | — |  | $ | 477
﻿Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿SARs liability |  |  | Accrued liabilities |  | $ | — |  | $ | 2,532 |  | $ | — |  | $ | 2,532
﻿SARs liability |  |  | Other long-term liabilities |  |  | — |  |  | 624 |  |  | — |  |  | 624
﻿ |  |  |  |  | $ | — |  | $ | 3,156 |  | $ | — |  | $ | 3,156
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  | 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 financing receivables (examples of financing receivables include loans, trade accounts receivable and notes receivable) and activity in the allowance for credit losses account. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258 + Details
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