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Segment Information (Income Loss Before Provision for Income Tax of Reportable Segments) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Segment Income Loss From Continuing Operations Before Provision For Income Tax [Line Items] |  |  |  |
Income Loss From Continuing Operations Before Provision For Income Tax Segment | $ 201,695 | $ 201,479 | $ 405,764 | $ 598,134
US Segment Reporting Information [Member] |  |  |  |
Segment Income Loss From Continuing Operations Before Provision For Income Tax [Line Items] |  |  |  |
Income Loss From Continuing Operations Before Provision For Income Tax Segment | 105,867 | 156,678 | 450,719 | 390,009
Canada Segment Reporting Information [Member] |  |  |  |
Segment Income Loss From Continuing Operations Before Provision For Income Tax [Line Items] |  |  |  |
Income Loss From Continuing Operations Before Provision For Income Tax Segment | 41,869 | 37,520 | 113,836 | 127,613
Europe And South Africa Segment Reporting Information [Member] |  |  |  |
Segment Income Loss From Continuing Operations Before Provision For Income Tax [Line Items] |  |  |  |
Income Loss From Continuing Operations Before Provision For Income Tax Segment | 41,553 | 32,166 | 74,756 | 58,363
Asia Pacific Segment Reporting Information [Member] |  |  |  |
Segment Income Loss From Continuing Operations Before Provision For Income Tax [Line Items] |  |  |  |
Income Loss From Continuing Operations Before Provision For Income Tax Segment | 17,112 | (16,483) | (258,818) | 39,443
Corporate And Other Segment Reporting Information [Member] |  |  |  |
Segment Income Loss From Continuing Operations Before Provision For Income Tax [Line Items] |  |  |  |
Income Loss From Continuing Operations Before Provision For Income Tax Segment | $ (4,706) | $ (8,402) | $ 25,271 | $ (17,294)

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