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	$ 38,839	$ 35,394	$ 30,662
Change in securities available for sale:
Unrealized holding gain (loss) on securities available for sale arising during the period	(14,119)	(820)	6,445
Reclassification adjustment for (gains)/losses included in net income	(107)	376	167
Reclassification adjustment for other than temporary impairment	0	1,026	286
Net securities gain (loss) activity during the period	(14,226)	582	6,898
Tax effect	5,571	(230)	(2,593)
Net of tax amount	(8,655)	352	4,305
Defined benefit pension plans:
Net gain (loss) on defined benefit pension plans	550	112	(1,043)
Amortization of net actuarial loss	244	220	175
Net gain (loss) activity during the period	794	332	(868)
Tax effect	(322)	(134)	352
Net of tax amount	472	198	(516)
Total other comprehensive income (loss), net of tax	(8,183)	550	3,789
Comprehensive income (loss)	$ 30,656	$ 35,944	$ 34,451