Investment Securities (Tables)

12 Months Ended

Dec. 31, 2019

Investment Securities [Abstract]

Amortization Cost And Estimated Fair Value Of Investment Securities

	2019
(in thousands)	Amortized ‎Cost		Gross ‎Unrealized ‎Gains		Gross  ‎Unrealized ‎Losses		Fair ‎Value
Available-for-Sale Securities:
State and municipals	$	372,113	$	10,269	$	(239)	$	382,143
Pass-through mortgage securities		60,307		1,104		(39)		61,372
Collateralized mortgage obligations		136,211		2,247		(259)		138,199
Corporate bonds		119,000		—		(3,170)		115,830
	$	687,631	$	13,620	$	(3,707)	$	697,544

	2018
Held-to-Maturity Securities:
State and municipals	$	5,142	$	36	$	—	$	5,178
Pass-through mortgage securities		267		11		—		278
Collateralized mortgage obligations		95		1		—		96
	$	5,504	$	48	$	—	$	5,552
Available-for-Sale Securities:
State and municipals	$	422,235	$	3,220	$	(5,417)	$	420,038
Pass-through mortgage securities		66,631		24		(1,169)		65,486
Collateralized mortgage obligations		154,378		886		(363)		154,901
Corporate bonds		119,000		—		(1,410)		117,590
	$	762,244	$	4,130	$	(8,359)	$	758,015

Securities With A Continuous Unrealized Losses Position

	2019
	Less than ‎12 Months				12 Months ‎or More				Total
(in thousands)	Fair ‎Value		Unrealized ‎Loss		Fair ‎Value		Unrealized ‎Loss		Fair ‎Value		Unrealized ‎Loss
State and municipals	$	6,662	$	(83)	$	5,084	$	(156)	$	11,746	$	(239)
Pass-through mortgage securities		5,287		(14)		4,084		(25)		9,371		(39)
Collateralized mortgage obligations		30,886		(259)		—		—		30,886		(259)
Corporate bonds		51,020		(980)		64,810		(2,190)		115,830		(3,170)
Total temporarily impaired	$	93,855	$	(1,336)	$	73,978	$	(2,371)	$	167,833	$	(3,707)

	2018
State and municipals	$	102,882	$	(1,639)	$	62,995	$	(3,778)	$	165,877	$	(5,417)
Pass-through mortgage securities		38,421		(142)		23,425		(1,027)		61,846		(1,169)
Collateralized mortgage obligations		32,577		(89)		7,342		(274)		39,919		(363)
Corporate bonds		97,590		(1,410)		—		—		97,590		(1,410)
Total temporarily impaired	$	271,470	$	(3,280)	$	93,762	$	(5,079)	$	365,232	$	(8,359)

Sales Of Available-For-Sale Securities

(in thousands)	2019		2018		2017
Proceeds	$	21,983	$	263,994	$	135,695
Gains	$	138	$	300	$	382
Losses		(124)		(10,706)		(2,249)
Net gain (loss)	$	14	$	(10,406)	$	(1,867)

Maturities

(in thousands)	Amortized ‎Cost		Fair Value
Available-for-Sale Securities:
Within one year	$	9,084	$	9,144
After 1 through 5 years		66,698		68,040
After 5 through 10 years		267,448		268,203
After 10 years		147,883		152,586
Mortgage-backed securities		196,518		199,571
	$	687,631	$	697,544