Annual report pursuant to Section 13 and 15(d)

SECURITIES AND OTHER INVESTMENTS (Tables)

v3.24.0.1
SECURITIES AND OTHER INVESTMENTS (Tables)
12 Months Ended
Dec. 31, 2023
Amortized Cost of HTM Securities by Security Type and Credit Rating

The following table presents the amortized cost of HTM securities as of December 31, by security type and credit rating (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

    

U.S. Government and Agency

    

Obligations of states and political

    

Corporate and other

    

Mortgage-backed

    

Total HTM

​

​

securities

​

subdivisions

​

bonds

​

securities

​

securities

2023

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Credit Rating:

​

 

​

​

 

​

​

 

​

​

​

​

​

​

​

AAA/AA/A

​

$

—

​

$

688,499

​

$

—

​

$

9,720

​

$

698,219

BBB/BB/B

​

​

—

​

​

1,166

​

​

—

​

​

—

​

​

1,166

Not Rated – Agency(1)

​

​

—

​

​

—

​

​

—

​

​

68,039

​

​

68,039

Not Rated – Non-Agency(2)

​

​

—

​

 

9,524

​

 

4,349

​

​

56,081

​

​

69,954

Total

​

$

—

​

$

699,189

​

$

4,349

​

$

133,840

​

$

837,378

2022

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Credit Rating:

​

 

​

​

 

​

​

 

​

​

​

​

​

​

​

AAA/AA/A

​

$

—

​

$

704,803

​

$

—

​

$

2,702

​

$

707,505

BBB/BB/B

​

​

—

​

​

1,187

​

​

—

​

​

—

​

​

1,187

Not Rated – Agency(1)

​

​

687

​

​

—

​

​

—

​

​

71,725

​

​

72,412

Not Rated – Non-Agency(2)

​

​

—

​

 

—

​

 

5,159

​

​

61,469

​

​

66,628

Total

​

$

687

​

$

705,990

​

$

5,159

​

$

135,896

​

$

847,732

​

(1) Generally considered not to have credit risk given the government guarantees associated with these agencies.

(2) Non-agency mortgage-backed and asset-backed securities have limited credit risk, supported by most receiving a 20% simplified supervisory formula approach rating.

Gross Realized Gain and Losses on the Sale of Securities

The following table presents the gross realized gains and losses on and the proceeds from the sale of securities during the years ended December 31, (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

    

2023

    

2022

    

2021

Realized gains (losses)(1):

​

​

​

​

​

​

​

​

​

Gross realized gains

 

$

1,355

 

$

—

 

$

147

Gross realized losses

​

 

(42,344)

​

 

(3)

​

 

(60)

Net realized (losses) gains

 

$

(40,989)

 

$

(3)

 

$

87

Proceeds from sales of securities

 

$

899,872

 

$

40,686

 

$

45,436

​

​

​

(1) Includes gains (losses) on sales and calls of securities

Available-for-sale Securities  
Amortized Cost, Gross Unrealized Gains and Losses, and Estimated Fair Values of Investment Securities

The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of December 31, are summarized as follows (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Amortized

​

Gross Unrealized

​

Estimated

​

    

Cost

    

Gains

    

(Losses)

    

Fair Value

2023

 

​

  

 

​

  

 

​

  

​

​

  

U.S. government and agency securities

​

$

62,367

​

$

1,023

​

$

(34)

​

$

63,356

Obligations of states and political subdivisions

​

 

586,865

​

 

33

​

 

(111,451)

​

 

475,447

Corporate and other bonds (1)

​

 

261,656

​

 

7

​

 

(19,774)

​

 

241,889

Commercial MBS

​

 

​

​

​

​

​

​

​

​

 

​

Agency

​

​

233,775

​

 

274

​

 

(41,181)

​

​

192,868

Non-agency

​

​

66,743

​

 

—

​

 

(1,965)

​

​

64,778

Total commercial MBS

​

​

300,518

​

 

274

​

 

(43,146)

​

​

257,646

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

1,312,538

​

 

114

​

 

(205,635)

​

​

1,107,017

Non-agency

​

​

89,840

​

 

141

​

 

(5,827)

​

​

84,154

Total residential MBS

​

​

1,402,378

​

 

255

​

 

(211,462)

​

​

1,191,171

Other securities

​

 

1,752

​

 

—

​

 

—

​

 

1,752

Total AFS securities

​

$

2,615,536

​

$

1,592

​

$

(385,867)

​

$

2,231,261

(1) Other bonds include asset-backed securities.

​

The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of December 31, are summarized as follows (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Amortized

​

Gross Unrealized

​

Estimated

​

    

Cost

    

Gains

    

(Losses)

    

Fair Value

2022

​

​

​

​

​

​

​

​

​

​

​

​

U.S. government and agency securities

​

$

70,196

​

$

—

​

$

(8,253)

​

$

61,943

Obligations of states and political subdivisions

​

​

959,999

​

 

137

​

 

(152,701)

​

 

807,435

Corporate and other bonds (1)

​

 

243,979

​

 

—

​

 

(17,599)

​

 

226,380

Commercial MBS

​

 

​

​

​

​

​

​

​

​

 

​

Agency

​

​

250,186

​

 

75

​

 

(39,268)

​

​

210,993

Non-agency

​

​

99,412

​

 

—

​

 

(4,244)

​

​

95,168

Total commercial MBS

​

​

349,598

​

 

75

​

 

(43,512)

​

​

306,161

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

1,510,110

​

 

81

​

 

(233,961)

​

​

1,276,230

Non-agency

​

​

68,815

​

 

—

​

 

(6,812)

​

​

62,003

Total residential MBS

​

​

1,578,925

​

 

81

​

 

(240,773)

​

​

1,338,233

Other securities

​

 

1,664

​

 

—

​

 

—

​

 

1,664

Total AFS securities

​

$

3,204,361

​

$

293

​

$

(462,838)

​

$

2,741,816

(1) Other bonds include asset-backed securities.

Schedule of Gross Unrealized Losses and Fair Value of Investments

The following table shows the gross unrealized losses and fair value of the Company’s AFS securities with unrealized losses. These are aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position (dollars in thousands).

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Less than 12 months

​

More than 12 months

​

Total

​

  

Fair

  

Unrealized

  

Fair

  

Unrealized

  

Fair

  

Unrealized

​

​

Value

​

Losses

​

Value(2)

​

Losses

​

Value

​

Losses

December 31, 2023

​

 

​

​

 

​

​

 

​

​

 

​

​

 

​

​

 

​

U.S. government and agency securities

​

$

—

​

$

—

​

$

1,980

​

$

(34)

​

$

1,980

​

$

(34)

Obligations of states and political subdivisions

​

​

11,758

​

​

(2,090)

​

​

455,931

​

​

(109,361)

​

​

467,689

​

​

(111,451)

Corporate and other bonds(1)

​

 

89,450

​

 

(531)

​

 

144,155

​

 

(19,243)

​

 

233,605

​

 

(19,774)

Commercial MBS

​

 

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

35,665

​

​

(547)

​

​

143,657

​

​

(40,634)

​

​

179,322

​

​

(41,181)

Non-agency

​

​

—

​

​

—

​

​

64,778

​

​

(1,965)

​

​

64,778

​

​

(1,965)

Total commercial MBS

​

​

35,665

​

​

(547)

​

​

208,435

​

​

(42,599)

​

​

244,100

​

​

(43,146)

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

59,707

​

​

(491)

​

​

1,011,809

​

​

(205,144)

​

​

1,071,516

​

​

(205,635)

Non-agency

​

​

9,022

​

​

(41)

​

​

40,085

​

​

(5,786)

​

​

49,107

​

​

(5,827)

Total residential MBS

​

​

68,729

​

​

(532)

​

​

1,051,894

​

​

(210,930)

​

​

1,120,623

​

​

(211,462)

Total AFS securities

​

$

205,602

​

$

(3,700)

​

$

1,862,395

​

$

(382,167)

​

$

2,067,997

​

$

(385,867)

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

December 31, 2022

​

 

  

​

 

  

​

 

  

​

 

  

​

 

  

​

 

  

U.S. government and agency securities

​

$

2,594

​

$

(166)

​

$

59,269

​

$

(8,087)

​

$

61,863

​

$

(8,253)

Obligations of states and political subdivisions

​

​

588,668

​

​

(86,895)

​

​

187,375

​

​

(65,806)

​

​

776,043

​

​

(152,701)

Corporate and other bonds(1)

​

 

206,861

​

 

(15,019)

​

 

17,121

​

 

(2,580)

​

 

223,982

​

 

(17,599)

Commercial MBS

​

 

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

73,362

​

​

(7,024)

​

​

127,193

​

​

(32,244)

​

​

200,555

​

​

(39,268)

Non-agency

​

​

66,618

​

​

(2,231)

​

​

28,550

​

​

(2,013)

​

​

95,168

​

​

(4,244)

Total commercial MBS

​

​

139,980

​

​

(9,255)

​

​

155,743

​

​

(34,257)

​

​

295,723

​

​

(43,512)

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

328,590

​

​

(27,769)

​

​

929,581

​

​

(206,192)

​

​

1,258,171

​

​

(233,961)

Non-agency

​

​

18,939

​

​

(1,288)

​

​

43,064

​

​

(5,524)

​

​

62,003

​

​

(6,812)

Total residential MBS

​

​

347,529

​

​

(29,057)

​

​

972,645

​

​

(211,716)

​

​

1,320,174

​

​

(240,773)

Total AFS securities

​

$

1,285,632

​

$

(140,392)

​

$

1,392,153

​

$

(322,446)

​

$

2,677,785

​

$

(462,838)

​

(1) Other bonds include asset-backed securities.

(2) Comprised of 757 and 363 individual securities as of December 31, 2023 and December 31, 2022, respectively.

Schedule of Amortized Cost and Estimated Fair Value of Securities

The following table presents the amortized cost and estimated fair value of AFS securities as of December 31, by contractual maturity (dollars in thousands). Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

2023

​

2022

​

    

Amortized

    

Estimated

    

Amortized

    

Estimated

​

​

Cost

​

Fair Value

​

Cost

​

Fair Value

Due in one year or less

​

$

52,427

​

$

51,936

​

$

42,447

​

$

41,735

Due after one year through five years

​

 

150,271

​

 

149,545

​

 

158,063

​

 

152,523

Due after five years through ten years

​

 

282,309

​

 

261,720

​

 

343,303

​

 

312,935

Due after ten years

​

 

2,130,529

​

 

1,768,060

​

 

2,660,548

​

 

2,234,623

Total AFS securities

​

$

2,615,536

​

$

2,231,261

​

$

3,204,361

​

$

2,741,816

Held-to-maturity Securities  
Schedule of Amortized Cost and Estimated Fair Value of Securities

​

The following table presents the amortized cost and estimated fair value of HTM securities as of December 31, by contractual maturity (dollars in thousands). Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

2023

​

2022

​

    

Carrying

    

Estimated

    

Carrying

    

Estimated

​

​

Value

​

Fair Value

​

Value

​

Fair Value

Due in one year or less

​

$

3,065

​

$

3,058

​

$

2,010

​

$

2,006

Due after one year through five years

​

 

34,093

​

 

34,613

​

 

35,044

​

 

35,014

Due after five years through ten years

​

 

45,919

​

 

45,263

​

 

19,941

​

 

20,239

Due after ten years

​

 

754,301

​

 

725,140

​

 

790,737

​

 

744,628

Total HTM securities

​

$

837,378

​

$

808,074

​

$

847,732

​

$

801,887

Schedule of Carrying Values, Gross Unrealized Gains and Losses and Estimated Fair Value of Securities

The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of December 31, are summarized as follows (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Carrying

​

Gross Unrealized

​

Estimated

​

    

Value

    

Gains

    

(Losses)

​

Fair Value

2023

 

​

  

 

​

  

 

​

  

​

​

  

Obligations of states and political subdivisions

​

$

699,189

​

$

6,175

​

$

(23,464)

​

$

681,900

Corporate and other bonds(1)

​

​

4,349

​

​

—

​

​

(100)

​

​

4,249

Commercial MBS

​

 

​

​

​

​

​

​

​

​

​

​

Agency

​

​

27,477

​

​

—

​

​

(5,570)

​

​

21,907

Non-agency

​

​

24,503

​

​

37

​

​

(449)

​

​

24,091

Total commercial MBS

​

​

51,980

​

​

37

​

​

(6,019)

​

​

45,998

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

40,562

​

​

—

​

​

(5,713)

​

​

34,849

Non-agency

​

​

41,298

​

​

122

​

​

(342)

​

​

41,078

Total residential MBS

​

​

81,860

​

​

122

​

​

(6,055)

​

​

75,927

Total HTM securities

​

$

837,378

​

$

6,334

​

$

(35,638)

​

$

808,074

(1) Other bonds include asset-backed securities.

​

The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of December 31, are summarized as follows (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Carrying

​

Gross Unrealized

​

Estimated

​

    

Value

    

Gains

    

(Losses)

    

Fair Value

2022

​

 

  

​

 

  

​

 

  

​

 

  

U.S. government and agency securities

​

$

687

​

$

—

​

$

(56)

​

$

631

Obligations of states and political subdivisions

​

​

705,990

​

​

2,218

​

​

(35,957)

​

​

672,251

Corporate and other bonds(1)

​

​

5,159

​

​

—

​

​

(10)

​

​

5,149

Commercial MBS

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

29,025

​

​

—

​

​

(4,873)

​

​

24,152

Non-agency

​

​

13,736

​

​

—

​

​

(126)

​

​

13,610

Total commercial MBS

​

​

42,761

​

​

—

​

​

(4,999)

​

​

37,762

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

42,699

​

​

—

​

​

(6,427)

​

​

36,272

Non-agency

​

​

50,436

​

​

—

​

​

(614)

​

​

49,822

Total residential MBS

​

​

93,135

​

​

—

​

​

(7,041)

​

​

86,094

Total HTM securities

​

$

847,732

​

$

2,218

​

$

(48,063)

​

$

801,887

(1) Other bonds include asset-backed securities.