XML 67 R40.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Investments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2014
Investment in Marketable Securities [Abstract] |
Investments |
| At December 31, 2014
In thousands | Cost |  | Gross Unrealized Losses |  | Gross Unrealized Gains |  | Estimated Fair Value
Equity securities | $ | 5,687 |  |  | $ | (8 | ) |  | $ | 303 |  |  | $ | 5,982 |
| At December 31, 2013
In thousands | Cost |  | Gross Unrealized Losses |  | Gross Unrealized Gains |  | Estimated Fair Value
Equity securities | $ | 17,649 |  |  | $ | (3,300 | ) |  | $ | 172 |  |  | $ | 14,521 |
Gross unrealized losses on investment securities | The following table summarizes the gross unrealized losses on investment securities for which other-than-temporary impairments have not been recognized and the fair values of those securities, aggregated by the length of time the individual securities have been in a continuous unrealized loss position, at December 31, 2014:
| Less than twelve months |  | Twelve months or more |  | Total
In thousands | Unrealized Losses | Fair Value |  | Unrealized Losses | Fair Value |  | Unrealized Losses | Fair Value
Equity securities | $ | (8 | ) | $ | 38 |  |  | $ | — |  | $ | — |  |  | $ | (8 | ) | $ | 38 |

X
- Details
Name: | cde_InvestmentInMarketableSecuritiesAbstract
Namespace Prefix: | cde_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Investment in marketable securities. + References No definition available. + Details
Name: | cde_InvestmentInMarketableSecuritiesTableTextBlock
Namespace Prefix: | cde_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
Name: | us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration