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Fair Value Measurements - Summary of Level 3 Financial Assets and Liabilities (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2019 USD ($)
Available-for-sale Securities |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Balance at the start of the period | $ 2,217
Revaluation | 59
Settlements | (2,276)
Accretion | 0
Balance at the end of the period | 0
Silvertip Mine |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |
Balance at the start of the period | 49,276
Revaluation | 0
Settlements | 0
Accretion | 179
Balance at the end of the period | $ 49,455

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- Definition Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Assets, Accretion + References No definition available. + Details
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- Definition Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Accretion + References No definition available. + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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