Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets:
Cash and cash equivalents	$ 63,888	$ 47,358
Investment securities:
Held-to-maturity, at amortized cost (fair value of $4,023 and $5,552)	3,983	5,504
Available-for-sale, at fair value	728,495	758,015
Total securities	732,478	763,519
Secured by real estate:
Loans	3,197,134	3,263,399
Allowance for loan losses	(29,856)	(30,838)
Total	3,167,278	3,232,561
Restricted stock, at cost	30,134	40,686
Bank premises and equipment, net	40,405	41,267
Right-of-use asset - operating leases	14,886
Bank-owned life insurance	82,558	80,925
Pension plan assets, net	15,115	15,154
Deferred income tax benefit	153	3,447
Other assets	15,700	16,143
Total assets	4,162,595	4,241,060
Deposits:
Checking	919,744	935,574
Savings, NOW and money market	1,745,284	1,590,341
Time, $100,000 and over	241,273	309,165
Time, other	320,522	249,892
Total	3,226,823	3,084,972
Short-term borrowings	151,625	388,923
Long-term debt	360,472	362,027
Operating lease liability	15,756
Accrued expenses and other liabilities	19,790	16,951
Total liabilities	3,774,466	3,852,873
Stockholders' Equity:
Common stock, par value $0.10 per share: Authorized, 80,000,000 shares; Issued and outstanding, 24,182,479 and 25,422,740 shares	2,418	2,542
Surplus	117,008	145,163
Retained earnings	269,498	249,922
Total	388,924	397,627
Accumulated other comprehensive loss, net of tax	(795)	(9,440)
Total	388,129	388,187
Total	4,162,595	4,241,060
Commercial And Industrial [Member]
Secured by real estate:
Loans	105,426	98,785
Allowance for loan losses	(1,369)	(1,158)
Commercial Mortgages [Member]
Secured by real estate:
Loans	1,351,918	1,281,295
Consumer And Other [Member]
Secured by real estate:
Loans	2,376	5,958
Allowance for loan losses	(14)	(49)
Closed-end [Member] \| Residential Mortgages [Member]
Secured by real estate:
Loans	1,674,539	1,809,651
Allowance for loan losses	(16,701)	(18,844)
Revolving Home Equity [Member] \| Residential Mortgages [Member]
Secured by real estate:
Loans	62,875	67,710
Allowance for loan losses	$ (506)	$ (410)

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