CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income	$ 6,034	$ 4,634	$ 11,823	$ 9,739
Other comprehensive income, net of tax:
Unrealized holding gains arising during the period	1,924	6,734	2,365	5,021
Tax provision	(755)	(2,653)	(928)	(1,986)
Unrealized holding gains arising during the period, net of tax	1,169	4,081	1,437	3,035
Less: Reclassification adjustment for net other-than-temporary impairment losses on securities	0	179	49	179
Tax benefit	0	(70)	(19)	(70)
Other-than-temporary impairment losses on securities, net of tax	0	109	30	109
Less: Reclassification adjustment for net gains on sales of securities	(228)	(130)	(375)	(397)
Tax provision	89	51	146	155
Gains on sales of securities, net of tax	(139)	(79)	(229)	(242)
Other comprehensive income, net of tax	1,030	4,111	1,238	2,902
Total net comprehensive income	$ 7,064	$ 8,745	$ 13,061	$ 12,641