
	Three Months Ended March 31,
	2022		2021

	(dollars in thousands)
Net realized gains (losses) on sales	$	—	$	—
Net unrealized gains (losses) on equity securities:
Readily determinable fair value		(187)		40
No readily determinable fair value		—		—
Gains (losses) on securities	$	(187)	$	40


	Investments in a Continuous Unrealized Loss Position
	Less than 12 Months				12 Months or More				Total
March 31, 2022	Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value

Available-for-sale:	(dollars in thousands)
U.S. Treasury	$	(7,329)	$	162,637	$	—	$	—	$	(7,329)	$	162,637
U.S. government agency		(1,181)		42,715		—		—		(1,181)		42,715
Municipal		(9,031)		157,069		(6,722)		53,718		(15,753)		210,787
Mortgage-backed:
Agency residential		(7,647)		191,824		(150)		3,931		(7,797)		195,755
Agency commercial		(5,579)		108,665		(2,040)		24,031		(7,619)		132,696
Corporate		(450)		14,550		(770)		4,190		(1,220)		18,740
Total available-for-sale		(31,217)		677,460		(9,682)		85,870		(40,899)		763,330
Held-to-maturity:
U.S. government agency		(722)		11,636		—		—		(722)		11,636
Mortgage-backed:
Agency residential		(947)		17,789		—		—		(947)		17,789
Agency commercial		(20,148)		255,033		(245)		2,363		(20,393)		257,396
Total held-to-maturity		(21,817)		284,458		(245)		2,363		(22,062)		286,821
Total debt securities	$	(53,034)	$	961,918	$	(9,927)	$	88,233	$	(62,961)	$	1,050,151


	Investments in a Continuous Unrealized Loss Position
	Less than 12 Months				12 Months or More				Total
December 31, 2021	Unrealized Loss		Fair Value		Unrealized Loss		Fair Value		Unrealized Loss		Fair Value

Available-for-sale:	(dollars in thousands)
U.S. Treasury	$	(354)	$	68,410	$	—	$	—	$	(354)	$	68,410
U.S. government agency		(2,183)		80,219		(284)		5,578		(2,467)		85,797
Municipal		(2,018)		89,424		(886)		17,327		(2,904)		106,751
Mortgage-backed:
Agency residential		(851)		91,703		(68)		4,305		(919)		96,008
Agency commercial		(1,921)		113,111		(127)		6,443		(2,048)		119,554
Corporate		(7)		2,737		(289)		4,671		(296)		7,408
Total available-for-sale		(7,334)		445,604		(1,654)		38,324		(8,988)		483,928
Held-to-maturity:
U.S. government agency		(51)		4,949		—		—		(51)		4,949
Mortgage-backed:
Agency residential		(102)		14,932		—		—		(102)		14,932
Agency commercial		(2,673)		174,428		(128)		2,776		(2,801)		177,204
Total held-to-maturity		(2,826)		194,309		(128)		2,776		(2,954)		197,085
Total debt securities	$	(10,160)	$	639,913	$	(1,782)	$	41,100	$	(11,942)	$	681,013