Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 21,442	$ 22,819
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,331	2,432
Net gain on sale of other real estate owned	(302)	(2,482)
Writedown of other real estate owned	350	998
Net gain on sale of building held for sale	0	(1,556)
Provision for loan losses	1,600	3,000
Deferred tax expense	167	1,508
Stock based compensation expense	96	173
Net gain on sale of bank premises and equipment	0	(1)
Net gain on sales and calls of securities	(249)	(6)
Decrease in taxes receivable	1,815	1,265
Increase in interest receivable	(7)	(152)
Decrease in interest payable	(33)	(2)
Increase in other assets	(405)	(2,561)
Increase (decrease) in accrued expenses and other liabilities	1,072	(1,009)
Total adjustments	6,435	1,607
Net cash provided by operating activities	27,877	24,426
Cash flows from investing activities:
Proceeds from sales and calls of securities available for sale	81,516	180,623
Proceeds from calls and maturities of held to maturity securities	7,403	8,289
Purchases of securities available for sale	(98,092)	(118,755)
Proceeds from maturities of securities available for sale	1,499	9,000
Purchases of Federal Reserve Bank and Federal Home Loan Bank stock	(252)	(451)
Net increase in loans	(90,557)	(107,000)
Net proceeds from sale of building held for sale	0	4,745
Proceeds from dispositions of other real estate owned	3,870	7,230
Proceeds from dispositions of bank premises and equipment	66	53
Purchases of bank premises and equipment	(1,932)	(4,160)
Net cash used in investing activities	(96,479)	(20,426)
Cash flows from financing activities:
Net increase in deposits	105,200	68,116
Net decrease in short-term borrowings	(18,366)	(22,646)
Proceeds from exercise of stock options and related tax benefits	99	0
Proceeds from sale of treasury stock	1,361	1,439
Purchases of treasury stock	(99)	0
Dividends paid	(12,456)	(12,405)
Net cash provided by financing activities	75,739	34,504
Net increase in cash and cash equivalents	7,137	38,504
Cash and cash equivalents at beginning of period	671,448	583,044
Cash and cash equivalents at end of period	678,585	621,548
Cash paid during the year for:
Interest paid	8,250	7,468
Income taxes paid	11,059	13,142
Other non cash items:
Transfer of loans to other real estate owned	3,585	5,880
Transfer of other real estate owned to fixed assets	0	568
Increase in dividends payable	10	14
Change in unrealized gain (loss) on securities available for sale-gross of deferred taxes	(2,422)	18,878
Change in deferred tax effect on unrealized gain (loss) on securities available for sale	971	(7,543)
Amortization of net actuarial gain (loss) and prior service credit on pension and postretirement plans	55	(236)
Change in deferred tax effect of amortization of net actuarial loss and prior service cost (credit)	$ (22)	$ 93