Condensed Consolidated Statements Of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Net income	$ 7,043	$ 5,412	$ 19,775	$ 17,988
Other comprehensive income (loss), before tax: Available-for-sale securities:
Unrealized losses on securities available for sale with other-than-temporary impairment	(346)	(861)	(128)	(1,043)
Unrealized gains (losses) on securities available for sale without other-than-temporary impairment	846	(453)	12,774	(16,057)
Less: reclassification adjustment for (gains) losses realized in net income	(320)	39	(306)	(191)
Less: reclassification adjustment for credit related other-than-temporary impairments recognized in net income	219		737
Unrealized gains (losses) on available-for-sale securities	399	(1,275)	13,077	(17,291)
Employee benefit plans:
Net actuarial (loss) gain on pension and other postretirement benefit plans	(2)	220	29	(104)
Net prior service cost attributed to plan amendments		(94)		(282)
Less: reclassification adjustment for amortization of prior service cost and net actuarial loss included in net periodic benefit cost	66	82	195	245
Unrealized gains (losses) on employee benefit plans	64	208	224	(141)
Other comprehensive income (loss), before tax	463	(1,067)	13,301	(17,432)
Income tax (expense) benefit	174	400	(5,009)	6,512
Other comprehensive income (loss), net of tax	289	(667)	8,292	(10,920)
Total comprehensive income	$ 7,332	$ 4,745	$ 28,067	$ 7,068