Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 7,987	$ 10,031
Unrealized gains on available-for-sale securities arising during the period	228	3,450
Reclassification adjustments for (gains) losses	(84)	31
Other comprehensive income before income taxes	144	3,481
Tax effect	(53)	(1,311)
Other comprehensive income, net of tax	91	2,170
Total comprehensive income	$ 8,078	$ 12,201

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References+ Details

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details

- Definition

Before tax amount of other comprehensive income (loss) attributable to the parent entity.

+ References

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+ Details

- Definition

Net of tax amount of other comprehensive income (loss) attributable to the parent entity.

+ References

+ Details

- Definition

Before tax amount of the income statement impact of the reclassification adjustment for unrealized gain (loss) realized upon the sale of available-for-sale securities.

+ References

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+ Details