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Income Tax (Sources of Income) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended | 132 Months Ended
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2012
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest, Total | $ (74,861) | $ (90,803) | $ 87,068 | $ (154,678)
U.S. |  |  |  |
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest, Total | (49,124) | (52,448) | 109,895 |
Foreign Tax Authority [Member] |  |  |  |
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest, Total | (16,197) | (26,393) | (21,842) |
Canada [Member] |  |  |  |
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest, Total | $ (9,540) | $ (11,962) | $ (985) |

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- Definition This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, and noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=7656940&loc=SL4569616-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 29 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration