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Geographic Information And Selected Statements Of Income Data (Summary Of Long-Lived Assets By Geographic Area) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2011 | Dec. 31, 2010
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Schedule Of Geographical Information [Line Items] |  |
Long-lived assets | $ 790,753 | $ 820,882
U.S. [Member] |  |
Schedule Of Geographical Information [Line Items] |  |
Long-lived assets | 202,461 | 205,422
Israel [Member] |  |
Schedule Of Geographical Information [Line Items] |  |
Long-lived assets | 92,610 | 86,577
Sweden [Member] |  |
Schedule Of Geographical Information [Line Items] |  |
Long-lived assets | 494,895 | 528,002
Rest Of The World [Member] |  |
Schedule Of Geographical Information [Line Items] |  |
Long-lived assets | $ 787 | $ 881

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- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 131 -Paragraph 38 -Subparagraph b(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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