Consolidated Statements Of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Comprehensive Income [Abstract]
Cashflow hedge	$ (117)	$ 0	$ (117)	$ 0
Net unrealized (loss) on cashflow hedge, deferred tax	43	0	43	0
Portion of loss recognized in other comprehensive income	0	194	37	740
Deferred taxes related to other-than-temporary impairment on available for sale debt securities	0	74	14	281
Net unrealized gain (loss) on available for sale debt securities	(681)	1,513	(7,038)	3,539
Net unrealized gain (loss) on available for sale debt securities, tax	252	575	2,604	1,345
Reclassification adjustment for net realized gains included in net income	$ 132	$ 760	$ 116	$ 2,245