CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Interest income:
Loans secured by real estate		$ 171,347	$ 169,208	$ 171,594
Other loans		93	105	101
Mortgage-backed securities		186	914	1,413
Investment securities		875	560	503
Federal funds sold and other short-term investments		2,290	2,165	1,845
Total interest income		174,791	172,952	175,456
Interest expense:
Deposits and escrow		23,005	19,591	19,927
Borrowed funds		23,222	28,825	27,042
Total interest expense		46,227	48,416	46,969
Net interest income		128,564	124,536	128,487
Provision (credit) for loan losses		(1,330)	(1,872)	369
Net interest income after provision for loan losses		129,894	126,408	128,118
Non-interest income:
Service charges and other fees		3,323	3,191	3,459
Mortgage banking income		183	1,225	473
Net gain on securities (1)	[1]	1,273	952	375
Net (loss) gain on the disposal of other assets		0	649	(21)
Income from Bank Owned Life Insurance (BOLI)		2,405	1,743	1,672
Other		1,432	1,278	1,505
Total non-interest income		8,616	9,038	7,463
Non-interest expense:
Salaries and employee benefits		31,350	32,462	34,336
Stock benefit plan compensation expense		3,640	3,817	3,957
Occupancy and equipment		10,514	10,177	10,451
Data processing costs		4,017	3,595	3,565
Advertising and marketing		2,685	1,922	1,109
Federal deposit insurance premiums		2,304	2,151	1,951
Provision for losses on OREO		0	0	180
Other		7,983	6,952	7,143
Total non-interest expense		62,493	61,076	62,692
Income before income taxes		76,017	74,370	72,889
Income tax expense		31,245	30,124	29,341
Net income		$ 44,772	$ 44,246	$ 43,548
Earnings per Share:
Basic (in dollars per share)		$ 1.24	$ 1.23	$ 1.24
Diluted (in dollars per share)		$ 1.23	$ 1.23	$ 1.23
STATEMENTS OF COMPREHENSIVE INCOME
Net income		$ 44,772	$ 44,246	$ 43,548
Amortization and reversal of net unrealized loss on securities transferred from available-for-sale to held-to-maturity, net of tax of $(54), $(29) and $(122) during the years ended December 31, 2015, 2014 and 2013, respectively		71	36	149
Reduction in (adjustment to) non-credit component of other than temprary impairmentsof securities, net of tax (expense) benefit of $4, $(16) and $(16) during the years ended December 31, 2015, 2014 and 2013, respectively		(5)	16	16
Reclassification adjustment for securities sold during the period, net of tax benefit of $624, $450 and $50 during the years ended December 31, 2015, 2014 and 2013, respectively (reclassified to net gain on securities)		(760)	(547)	(60)
Net unrealized securities gain (loss) arising during the period, net of deferred tax (expense) benefit of $78, $29 and $(162) during the years ended December 31, 2015, 2014 and 2013, respectively		(98)	(36)	201
Change in pension and other postretirement obligations, net of deferred tax (expense) benefit of $(451), $2,685 and $(3,765) during the years ended December 31, 2015, 2014 and 2013, respectively		538	(3,257)	4,575
Total other comprehensive income (loss), net of tax		(254)	(3,788)	4,881
Comprehensive Income		$ 44,518	$ 40,458	$ 48,429

[1] Amount includes periodic valuation gains or losses on trading securities.