Securities

12 Months Ended

Dec. 31, 2020

Investments, Debt and Equity Securities [Abstract]

The book values and approximate fair values of investment securities at December 31, 2020 and 2019 are summarized as follows:


	2020					2019
	Amortized Cost		Fair Value	Unrealized		Amortized Cost	Fair Value	Unrealized
($ in thousands)				Gains	(Losses)			Gains	(Losses)
Securities available for sale:
Government-sponsored enterprise securities	$	70,016	70,206	371	(181)	20,000	20,009	17	(8)
Mortgage-backed securities	1,318,998		1,337,706	20,832	(2,124)	758,491	767,285	9,463	(669)
Corporate bonds	43,670		45,220	1,760	(210)	33,711	34,651	1,025	(85)
Total available for sale	1,432,684		1,453,132	22,963	(2,515)	812,202	821,945	10,505	(762)

Securities held to maturity:
Mortgage-backed securities	29,959		30,900	941	—	41,423	41,542	125	(6)
State and local governments	137,592		139,834	2,407	(165)	26,509	26,791	285	(3)
Total held to maturity	$	167,551	170,734	3,348	(165)	67,932	68,333	410	(9)

All of the Company’s mortgage-backed securities were issued by government-sponsored corporations, except for private mortgage-backed securities with a fair value of $1.0 million and $1.1 million as of December 31, 2020 and 2019, respectively.

The following table presents information regarding securities with unrealized losses at December 31, 2020:


($ in thousands)	Securities in an Unrealized Loss Position for Less than 12 Months			Securities in an Unrealized Loss Position for More than 12 Months		Total
	Fair Value		Unrealized Losses	Fair Value	Unrealized Losses	Fair Value	Unrealized Losses
Government-sponsored enterprise securities	$	29,812	181	—	—	29,812	181
Mortgage-backed securities	497,992		1,957	6,168	167	504,160	2,124
Corporate bonds	3,956		45	835	165	4,791	210
State and local governments	23,310		165	—	—	23,310	165
Total temporarily impaired securities	$	555,070	2,348	7,003	332	562,073	2,680

The following table presents information regarding securities with unrealized losses at December 31, 2019:


($ in thousands)	Securities in an Unrealized Loss Position for Less than 12 Months			Securities in an Unrealized Loss Position for More than 12 Months		Total
	Fair Value		Unrealized Losses	Fair Value	Unrealized Losses	Fair Value	Unrealized Losses
Government-sponsored enterprise securities	$	4,992	8	—	—	4,992	8
Mortgage-backed securities	77,274		293	50,851	382	128,125	675
Corporate bonds	—		—	915	85	915	85
State and local governments	—		—	934	3	934	3
Total temporarily impaired securities	$	82,266	301	52,700	470	134,966	771

In the above tables, all of the securities that were in an unrealized loss position at December 31, 2020 and 2019 are bonds that the Company has determined are in a loss position due primarily to interest rate factors and not credit quality concerns. The Company evaluated the collectability of each of these bonds and concluded that there was no other-than-temporary impairment. The Company does not intend to sell these securities, and it is more likely than not that the Company will not be required to sell these securities before recovery of the amortized cost.

As of December 31, 2020 and December 31, 2019, the Company's security portfolio held 69 and 54 securities that were in an unrealized loss position, respectively. The majority of unrealized losses are related to the Company's mortgage-backed securities.

The book values and approximate fair values of investment securities at December 31, 2020, by contractual maturity, are summarized in the table below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.


	Securities Available for Sale			Securities Held to Maturity
($ in thousands)	Amortized Cost		Fair Value	Amortized Cost		Fair Value
Debt securities
Due within one year	$	—	—	$	2,087	2,101
Due after one year but within five years	28,670		30,265	2,915		3,008
Due after five years but within ten years	74,016		74,400	3,418		3,536
Due after ten years	11,000		10,761	129,172		131,189
Mortgage-backed securities	1,318,998		1,337,706	29,959		30,900
Total securities	$	1,432,684	1,453,132	$	167,551	170,734

At December 31, 2020 and 2019, investment securities with carrying values of $630,303,000 and $260,826,000, respectively, were pledged as collateral for public deposits.

In 2020, the Company received proceeds from sales of securities of $219,697,000 and recorded $8,024,000 in gross gains from the sales. In 2019, the Company received proceeds from sales of securities of $39,797,000 and recorded $97,000 in gross gains from the sales. The Company sold no securities in 2018.

Included in “other assets” in the Consolidated Balance Sheets are investments in Federal Home Loan Bank (“FHLB”) and Federal Reserve Bank of Richmond (“FRB”) stock totaling $23,526,000 and $33,380,000 at December 31, 2020 and 2019, respectively. These investments do not have readily determinable fair values. The FHLB stock had a cost and fair value of $5,855,000 and $15,789,000 at December 31, 2020 and 2019, respectively, and serves as part of the collateral for the Company’s line of credit with the FHLB and is also a requirement for membership in the FHLB system. The FRB stock had a cost and fair value of $17,671,000 and $17,591,000 at December 31, 2020 and 2019, respectively, and is a requirement for FRB member bank qualification. Periodically, both the FHLB and FRB recalculate the Company’s required level of holdings, and the Company either buys more stock or redeems a portion of the stock at cost. The Company determined that neither stock was impaired at either period end.

The Company owns 12,356 Class B shares of Visa, Inc. (“Visa”) stock that were received upon Visa’s initial public offering. These shares are expected to convert into Class A Visa shares subsequent to the settlement of certain litigation against Visa, to which the Company is not a party. The Class B shares have transfer restrictions, and the conversion rate into Class A shares is periodically adjusted as Visa settles litigation. The conversion rate at December 31, 2020 was approximately 1.62, which means the Company would receive approximately 20,051 Class A shares if the stock had converted on that date. This Class B stock does not have a readily determinable fair value and is carried at zero. If a readily determinable fair value becomes available for the Class B shares, or upon the conversion to Class A shares, the Company will adjust the carrying value of the stock to its market value with a credit to earnings.