Asset Retirement Obligations (Narrative) (Details) - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended |
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Dec. 31, 2019 |
Dec. 31, 2019 |
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| Asset Retirement Obligations [Abstract] | ||
| Asset retirement obligation, revision of estimate | $ (379) | |
| Estimate of increase costs | $ 600 |
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- Definition Asset Retirement Obligation, Estimate Of Increase Costs No definition available.
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- References No definition available.
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- Definition Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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