v2.4.0.8

Investment Securities Continuous Unrealized Loss (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 Corporate Bonds	Dec. 31, 2012 Corporate Bonds	Jun. 30, 2013 Commercial Paper	Dec. 31, 2012 Commercial Paper	Jun. 30, 2013 Agencies Securities	Dec. 31, 2012 Agencies Securities	Jun. 30, 2013 Mortgage-backed Securities	Jun. 30, 2013 Municipal Bonds	Dec. 31, 2012 Municipal Bonds	Jun. 30, 2013 Asset-backed Securities	Jun. 30, 2013 Total fixed income securities [Member]	Dec. 31, 2012 Total fixed income securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Other than Temporary Impairment Losses, Investments	$ 0	$ 0	$ 0	$ 0
Fair value, less than 12 months					19,226	6,138	8,384	6,390	13,488	6,302	1,147	11,599	1,602	9,846	63,690	20,432
Unrealized losses, less than 12 months					(25)	(2)	(2)	(2)	(18)	(1)	(59)	(30)	(3)	(21)	(155)	(8)
Fair value, 12 months or more					0	0	0	0	0	0	0	0	0	0	0	0
Unrealized losses, 12 months or more					0	0	0	0	0	0	0	0	0	0	0	0
Total fair value					19,226	6,138	8,384	6,390	13,488	6,302	1,147	11,599	1,602	9,846	63,690	20,432
Total unrealized losses					$ (25)	$ (2)	$ (2)	$ (2)	$ (18)	$ (1)	$ (59)	$ (30)	$ (3)	$ (21)	$ (155)	$ (8)

X

- 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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The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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