Condensed Consolidated Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net Income	$ 11,928	$ 5,816	$ 24,228	$ 16,369
Other comprehensive income (loss), before tax (expense) benefit:
Unrealized holding gains (losses) on securities arising from during the period	9,950	(25,230)	22,407	(27,641)
Less: reclassification adjustment for gains on securities included in net income	(2)	(4)	(2)	(8)
Total other comprehensive income (loss), before tax (expense) benefit	9,948	(25,234)	22,405	(27,649)
Income tax (expense) benefit related to items of other comprehensive income (loss)	(3,478)	8,824	(7,839)	9,668
Total other comprehensive income (loss)	6,470	(16,410)	14,566	(17,981)
Comprehensive Income (Loss)	$ 18,398	$ (10,594)	$ 38,794	$ (1,612)