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Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at beginning of period	$ 7,940	$ 7,401
Unrealized gains (losses) arising during the period	(3,495)	42
Reclassification of realized gains during the period	(299)	(523)
Related deferred taxes	1,328	168
Net change	(2,466)	(313)
Balance at end of period	$ 5,474	$ 7,088

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Accumulated appreciation or loss, net of tax, in value of the total of available-for-sale securities at the end of an accounting period.

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Net of tax amount of the appreciation (loss) in the value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) losses.

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