Quarterly report pursuant to Section 13 or 15(d)

Short-Term And Long-Term Investments And Restricted Deposits (Narrative) (Details)

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Short-Term And Long-Term Investments And Restricted Deposits (Narrative) (Details)
Jun. 30, 2014
positions
Investments, Debt and Equity Securities [Abstract]  
Percentage of investments in securities recorded at fair value that carry a rating by Moody's or S&P of AAA/Aaa 53.00%
Percentage of investments in securities recorded at fair value that carry a rating by Moody's or S&P of AA-/Aa3 or higher 65.00%
Percentage of investments in securities recorded at fair value that carry a rating by Moody's or S&P of A-/A3 or higher 93.00%
Positions from which gross unrealized losses were generated 51
TotalUnrealizedInvestmentPositions 323