Consolidated Statements Of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Statement of Comprehensive Income [Abstract]
Portion of loss recognized in other comprehensive income	$ 0	$ 264	$ 37	$ 547
Deferred taxes related to other-than-temporary impairment on available for sale debt securities	0	100	14	208
Net unrealized gain on available for sale debt securities	(6,174)	1,213	(6,460)	2,027
Net unrealized gain on available for sale debt securities, tax	2,346	461	2,455	770
Reclassification adjustment for net realized gains included in net income	$ (57)	$ 320	$ (16)	$ 1,485

Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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Amount before tax of other than temporary impairment (OTTI) on investment in available-for-sale debt security, recognized in other comprehensive loss.

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