CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
INTEREST AND DIVIDEND INCOME:
Loans, including related fees	$ 91,242	$ 99,196	$ 91,392
Securities:
Taxable	16,157	13,542	16,161
Tax-exempt	7,046	7,246	6,779
Other	1,776	2,321	2,009
TOTAL INTEREST AND DIVIDEND INCOME	116,221	122,305	116,341
INTEREST EXPENSE:
Deposits	5,886	8,520	12,127
Short-term borrowings	78	140	187
Other borrowings	2,997	4,733	4,833
TOTAL INTEREST EXPENSE	8,961	13,393	17,147
NET INTEREST INCOME	107,260	108,912	99,194
Net Provision for loan losses	7,860	8,773	5,755
NET INTEREST INCOME AFTER PROVISION FOR LOAN LOSSES	99,400	100,139	93,439
NON-INTEREST INCOME:
Trust and financial services	6,035	5,804	4,544
Service charges and fees on deposit accounts	10,162	9,742	8,995
Other service charges and fees	11,081	9,710	8,289
Securities gain, net	423	886	6
Other-than-temporary loss
Total impairment loss	0	(11)	(110)
Loss recognized in other comprehensive income	0	0	0
Net impairment loss recognized in earnings	0	(11)	(110)
Insurance commissions	7,750	7,422	7,347
Gain on sale of mortgage loans	3,052	4,590	1,957
Other	1,952	1,404	2,312
TOTAL NON-INTEREST INCOME	40,455	39,547	33,340
NON-INTEREST EXPENSES:
Salaries and employee benefits	55,097	56,211	45,362
Occupancy expense	6,102	5,746	4,777
Equipment expense	6,348	5,489	4,352
Federal Deposit Insurance	2,052	1,949	1,804
Other	24,955	23,661	18,892
TOTAL NON-INTEREST EXPENSE	94,554	93,056	75,187
INCOME BEFORE INCOME TAXES	45,301	46,630	51,592
Provision for income taxes	13,767	13,818	14,397
NET INCOME	31,534	32,812	37,195
OTHER COMPREHENSIVE INCOME
Change in unrealized gains/losses on securities, net of reclassifications and taxes	(17,066)	691	8,857
Change in funded status of post-retirement benefits, net of taxes	10,569	2,331	(9,982)
COMPREHENSIVE INCOME	$ 25,037	$ 35,834	$ 36,070
EARNINGS PER SHARE:
BASIC AND DILUTED (in dollars per share)	$ 2.37	$ 2.48	$ 2.83
Weighted average number of shares outstanding (in shares)	13,310	13,240	13,163