v2.4.0.8

Investment Securities (Details 4) (USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Realized gains (losses) on marketable investment securities |  |  |
Realized gains from the sales of available-for-sale marketable investment securities | $ 36,300,000 | $ 175,200,000 | $ 6,700,000
Proceeds from sales of available-for-sale marketable investment securities | 177,500,000 | 601,300,000 | 1,540,000,000
Fair value of marketable investment securities in a loss position |  |  |
Less than 12 months | 571,592,000 | 275,587,000 |
12 months or more |  | 12,963,000 |
Total | 571,592,000 | 288,550,000 |
Unrealized losses on marketable investment securities in a loss position |  |  |
Less than 12 months | (825,000) | (288,000) |
12 or more |  | (19,000) |
Total | $ (825,000) | $ (307,000) |

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- Definition Amount of accumulated unrealized loss on securities classified as available-for-sale securities, impacting investments. + References No definition available. + Details
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- Definition Amount of accumulated unrealized loss on securities classified as available-for-sale securities that have been in a loss position for less than twelve months impacting investments. + References No definition available. + Details
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- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 + Details
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