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	$ 6,412	$ 7,070	$ 12,995	$ 13,409
Unrealized gains on AFS securities:
Unrealized holding gains on AFS arising during period	2,740	3,449	1,521	3,563
Less: reclassification adjustment for gains included in net income	(488)	(27)	(567)	(5)
Net change in unrealized gains on AFS securities	2,252	3,422	954	3,558
Unrealized loss on cash flow hedging derivatives	(2,279)	(1,230)	(754)	(1,082)
Postretirement plans:
Net actuarial gain arising during period	24	12	48	23
Reclassification: amortization of prior service cost included in net periodic cost	3	3	6	5
Other comprehensive income		2,207	254	2,504
Comprehensive income	$ 6,412	$ 9,277	$ 13,249	$ 15,913