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SECURITIES (Tables)

12 Months Ended

Dec. 31, 2020

SECURITIES

Summary of carrying balances of securities

		December 31,			December 31,
		2020			2019
		(dollars in thousands)
Debt securities available-for-sale		$	922,869		$	592,404
Debt securities held-to-maturity			68,395			88,477
Equity securities:
Readily determinable fair value			3,292			3,241
No readily determinable fair value			1,552			1,148
Total securities		$	996,108		$	685,270

Schedule of sales of securities available-for-sale

		Year Ended December 31,
		2020			2019			2018
		(dollars in thousands)
Proceeds from sales		$	—			—		$	104,303
Gross realized gains			—			—			281
Gross realized losses			—			—			(2,822)

Schedule of gains (losses) on securities

		Year Ended December 31,
		2020			2019			2018
		(dollars in thousands)
Net realized losses on sales		$	—			—		$	(2,541)
Net unrealized gains (losses) on equity securities:
Readily determinable fair value			33			160			(122)
No readily determinable fair value			—			(165)			—
Gains (losses) on securities		$	33			(5)		$	(2,663)

Schedule of amortized cost and fair values of securities available-for-sale, with gross unrealized gains and losses

December 31, 2020		Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Fair Value
Available-for-sale:		(dollars in thousands)
U.S. government agency		$	118,282		$	3,720		$	(9)		$	121,993
Municipal			265,309			9,232			(280)			274,261
Mortgage-backed:
Agency residential			198,543			4,871			(162)			203,252
Agency commercial			246,649			4,651			(534)			250,766
Corporate			70,917			1,786			(106)			72,597
Total available-for-sale			899,700			24,260			(1,091)			922,869
Held-to-maturity:
Municipal			22,484			1,390			—			23,874
Mortgage-backed:
Agency residential			13,031			452			—			13,483
Agency commercial			32,880			2,222			(18)			35,084
Total held-to-maturity			68,395			4,064			(18)			72,441
Total debt securities		$	968,095		$	28,324		$	(1,109)		$	995,310

December 31, 2019		Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Fair Value
Available-for-sale:		(dollars in thousands)
U.S. government agency		$	49,113		$	529		$	(27)		$	49,615
Municipal			131,241			2,503			(6)			133,738
Mortgage-backed:
Agency residential			198,184			2,780			(286)			200,678
Agency commercial			133,730			1,516			(292)			134,954
Corporate			72,239			1,180			—			73,419
Total available-for-sale			584,507			8,508			(611)			592,404
Held-to-maturity:
Municipal			45,239			1,340			—			46,579
Mortgage-backed:
Agency residential			19,072			161			(170)			19,063
Agency commercial			24,166			775			(54)			24,887
Total held-to-maturity			88,477			2,276			(224)			90,529
Total debt securities		$	672,984		$	10,784		$	(835)		$	682,933

Schedule of amortized cost and fair value of securities by contractual maturity

		Available-for-Sale						Held-to-Maturity
		Amortized Cost			Fair Value			Amortized Cost			Fair Value
		(dollars in thousands)
Due in 1 year or less		$	28,332		$	28,626		$	1,396		$	1,424
Due after 1 year through 5 years			82,778			85,859			13,895			14,806
Due after 5 years through 10 years			210,971			218,710			6,302			6,723
Due after 10 years			132,427			135,656			891			921
Mortgage-backed:
Agency residential			198,543			203,252			13,031			13,483
Agency commercial			246,649			250,766			32,880			35,084
Total		$	899,700		$	922,869		$	68,395		$	72,441

Schedule of gross unrealized losses and fair value of investments

		Investments in a Continuous Unrealized Loss Position
		Less than 12 Months						12 Months or More						Total
December 31, 2020		Unrealized Loss			Fair Value			Unrealized Loss			Fair Value			Unrealized Loss			Fair Value
Available-for-sale:		(dollars in thousands)
U.S. government agency		$	(9)		$	5,919		$	—		$	—		$	(9)		$	5,919
Municipal			(280)			19,652			—			—			(280)			19,652
Mortgage-backed:
Agency residential			(142)			20,387			(20)			4,490			(162)			24,877
Agency commercial			(524)			57,126			(10)			3,449			(534)			60,575
Corporate			(106)			4,849			—			—			(106)			4,849
Total available-for-sale			(1,061)			107,933			(30)			7,939			(1,091)			115,872
Held-to-maturity:
Mortgage-backed:
Agency commercial			(18)			2,983			—			—			(18)			2,983
Total held-to-maturity			(18)			2,983			—			—			(18)			2,983
Total debt securities		$	(1,079)		$	110,916		$	(30)		$	7,939		$	(1,109)		$	118,855

		Investments in a Continuous Unrealized Loss Position
		Less than 12 Months						12 Months or More						Total
December 31, 2019		Unrealized Loss			Fair Value			Unrealized Loss			Fair Value			Unrealized Loss			Fair Value
Available-for-sale:		(dollars in thousands)
U.S. government agency		$	(26)		$	18,865		$	(1)		$	1,998		$	(27)		$	20,863
Municipal			(6)			894			—			—			(6)			894
Mortgage-backed:
Agency residential			(108)			25,563			(178)			27,296			(286)			52,859
Agency commercial			(100)			20,056			(192)			15,704			(292)			35,760
Total available-for-sale			(240)			65,378			(371)			44,998			(611)			110,376
Held-to-maturity:
Mortgage-backed:
Agency residential			(30)			2,516			(140)			9,002			(170)			11,518
Agency commercial			(47)			7,016			(7)			599			(54)			7,615
Total held-to-maturity			(77)			9,532			(147)			9,601			(224)			19,133
Total debt securities		$	(317)		$	74,910		$	(518)		$	54,599		$	(835)		$	129,509

Schedule of equity securities with initial cost and carrying values of equity securities, with cumulative net unrealized gains and losses

					Cumulative
					Net Unrealized
December 31, 2020		Initial Cost			Gains (Losses)			Carrying Value
		(dollars in thousands)
Readily determinable fair value		$	3,098		$	194		$	3,292
No readily determinable fair value			1,717			(165)			1,552
Total equity securities		$	4,815		$	29		$	4,844

					Cumulative
					Net Unrealized
December 31, 2019		Initial Cost			Gains (Losses)			Carrying Value
		(dollars in thousands)
Readily determinable fair value		$	3,080		$	161		$	3,241
No readily determinable fair value			1,313			(165)			1,148
Total equity securities		$	4,393		$	(4)		$	4,389

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