v2.4.0.6

Investment Securities (Details 4) (Debt securities, USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Debt securities
Fair value of marketable investment securities in a loss position
Less than 12 months	$ 275,587	$ 507,925
12 months or more	12,963	3,931
Total	288,550	511,856
Unrealized losses on marketable investment securities in a loss position
Less than 12 months	(288)	(2,709)
12 or more	(19)	(6)
Total	$ (307)	$ (2,715)

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- Definition

Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for securities which are categorized neither as held-to-maturity nor trading securities.

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Amount of the excess of amortized cost basis over fair value of securities in a loss position and categorized neither as held-to-maturity nor trading securities.

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