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Segment Information (Details 1) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
Segment Income Loss From Continuing Operations Before Provision For Income Tax [Line Items] |  |  |  |
Income Loss From Continuing Operations Before Provision For Income Tax Segment | $ 215,892 | $ 187,169 | $ 396,655 | $ 413,924
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 | 140,586 | 114,277 | 233,331 | 261,846
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 | 35,030 | 44,089 | 90,093 | 74,001
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 | 19,591 | 12,525 | 26,197 | 35,060
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 | 23,859 | 4,326 | 55,926 | 26,302
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 | $ (3,174) | $ 11,952 | $ (8,892) | $ 16,715

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- Details
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