CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net income	$ 44,530	$ 45,122	$ 25,252
Other comprehensive income (loss) net of tax:
Unrealized holding gain (loss) on securities available for sale arising during the period, net of tax of $6,841, $654, and $10,658	(12,705)	1,214	9,163
Unrealized gain (loss) on securities transferred to held-to-maturity, net of tax of $1,786, $0, and $2,864	(3,316)		5,315
Unrealized gain (loss) on securities available for sale for which a portion of an other than temporary impairment has been recognized in income, net of tax of $767, $56, and $86	1,425	(104)	160
Reclassification adjustment for net losses (gains) included in net income net of tax of $157, $759, and $714	1,543	(952)	(2,129)
Defined Benefit Pension Plans, net of tax of $6,382, $346, and $2,492	291	(1,413)	(1,326)
Net Gain (Loss) Arising During Period	10,704	(577)	(5,722)
Prior Service Cost Arising During Period			26
Amortization of Prior Service Cost	1,147	(65)	1,068
Other Comprehensive Income, net of tax	(911)	(1,897)	6,555
Comprehensive income	$ 43,619	$ 43,225	$ 31,807