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Asset Retirement Obligations and Remediation Costs (Policies) | 12 Months Ended
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Dec. 31, 2015
Policies |
Asset Retirement Obligations and Remediation Costs | Asset Retirement Obligations and Remediation Costs Mineral properties are subject to standards for mine reclamation that have been established by various governmental agencies. Asset retirement obligations are related to the retirement of the mine when a contractual obligation has been established, if a reasonable estimate of fair value can be determined. These obligations are initially measured at fair value with the resulting cost capitalized at the present value of estimated reclamation costs. An asset and a related liability are recorded for the fair value of these costs. The liability is accreted and the asset amortized over the life of the related asset. Adjustments are made for changes resulting from either the timing or amount of the original estimate underlying the obligation. If there is an impairment to an asset’s carrying value and a decision is made to permanently close the property, changes to the liability are recognized and charged to the provision for closed operations and environmental matters. Separate from asset retirement obligations, the Company records liability for remediation costs when a reasonable estimate of fair value can be determined. Remediation costs are not discounted.

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- Definition Disclosure of accounting policy for (1) legal obligations associated with the disposal or removal of a long-lived asset from service that result from the acquisition, construction, or development or from the normal operation of a long-lived asset (except obligations of a lessee in connection with leased property that are minimum lease payments or contingent rentals, or obligations that arise solely from a plan to sell or otherwise dispose of a long-lived asset); and (2) certain environmental remediation liabilities that resulted from the improper or other-than-normal operation of a long-lived asset. This accounting policy may address (1) whether the related remediation costs are expensed or capitalized, (2) whether the obligation is measured on a discounted basis, (3) the event, situation, or set of circumstances that generally triggers recognition of loss contingencies arising from the entity's environmental remediation-related obligations, and (4) the timing of recognition of any recoveries. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13231-110859 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=51655414&loc=d3e18780-107790 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 55 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=6571209&loc=d3e13669-110860 + Details
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