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Fair Value Of Financial Instruments (Narrative) (Details) (USD $) | 12 Months Ended
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Dec. 31, 2012
Fair Value Inputs, Assets, Quantitative Information [Line Items] |
Fair Value Inputs, Discount Rate | 15.00%
Level 3 percentage of fair value assets | 15.00%
Minimum [Member] |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |
Weighted average gold price per ounce (in dollars per ounce) | 1,038
Estimated gold production (in ounces) | 350,000
Timing of commencement of commercial production | 3 years
Maximum [Member] |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |
Weighted average gold price per ounce (in dollars per ounce) | 1,247
Estimated gold production (in ounces) | 650,000
Timing of commencement of commercial production | 6 years

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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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- Definition The amount of estimated gold production, used as an input to measure fair value. + References No definition available. + Details
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- Definition Price per ounce, used as an input to measure fair value. + References No definition available. + Details
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- Definition The estimated time period that gold production will commence, used as an input to measure fair value. + References No definition available. + Details
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- Definition Percentage of total fair value assets that are classified as level 3. + References No definition available. + Details
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Balance Type: | na
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