Annual report pursuant to Section 13 and 15(d)

SECURITIES (Tables)

v3.22.0.1
SECURITIES (Tables)
12 Months Ended
Dec. 31, 2021
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, 2021 and 2020 by security type and credit rating (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

    

U.S. Government and Agency

    

Obligations of states and political

    

Mortgage-backed

    

Total HTM

​

​

securities

​

subdivisions

​

securities

​

securities

December 31, 2021

​

​

​

​

​

​

​

​

​

​

​

​

Credit Rating:

​

 

​

​

 

​

​

​

​

​

​

​

AAA/AA/A

​

$

—

​

$

620,873

​

$

—

​

$

620,873

Not Rated - Agency(1)

​

​

2,604

​

​

—

​

​

4,523

​

​

7,127

Total

​

$

2,604

​

$

620,873

​

$

4,523

​

$

628,000

December 31, 2020

​

​

​

​

​

​

​

​

​

​

​

​

Credit Rating:

​

 

​

​

 

​

​

​

​

​

​

​

AAA/AA/A

​

$

—

​

$

532,157

​

$

—

​

$

532,157

Not Rated - Agency(1)

​

​

2,751

​

​

—

​

​

5,333

​

​

8,084

Not Rated - Non-Agency

​

​

—

​

 

4,610

​

​

—

​

​

4,610

Total

​

$

2,751

​

$

536,767

​

$

5,333

​

$

544,851

​

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

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, 2021, 2020, and 2019 (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

    

2021

    

2020

    

2019

Realized gains (losses)(1):

​

​

​

​

​

​

​

​

​

Gross realized gains

 

$

147

 

$

12,522

 

$

9,530

Gross realized losses

​

 

(60)

​

 

(228)

​

 

(1,855)

Net realized gains

 

$

87

 

$

12,294

 

$

7,675

Proceeds from sales of securities

 

$

45,436

 

$

257,945

 

$

514,070

​

​

​

(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, 2021 are summarized as follows (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Amortized

​

Gross Unrealized

​

Estimated

​

    

Cost

    

Gains

    

(Losses)

    

Fair Value

December 31, 2021

 

​

  

 

​

  

 

​

  

​

​

  

U.S. government and agency securities

​

$

73,830

​

$

179

​

$

(160)

​

$

73,849

Obligations of states and political subdivisions

​

 

971,126

​

 

39,343

​

 

(2,073)

​

 

1,008,396

Corporate and other bonds (1)

​

 

150,201

​

 

3,353

​

 

(178)

​

 

153,376

Commercial MBS

​

 

​

​

​

​

​

​

​

​

 

​

Agency

​

​

361,806

​

 

6,761

​

 

(4,215)

​

​

364,352

Non-agency

​

​

107,087

​

 

139

​

 

(421)

​

​

106,805

Total commercial MBS

​

​

468,893

​

 

6,900

​

 

(4,636)

​

​

471,157

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

1,691,651

​

 

15,180

​

 

(24,337)

​

​

1,682,494

Non-agency

​

​

91,443

​

 

243

​

 

(948)

​

​

90,738

Total residential MBS

​

​

1,783,094

​

 

15,423

​

 

(25,285)

​

​

1,773,232

Other securities

​

 

1,640

​

 

—

​

 

—

​

 

1,640

Total AFS securities

​

$

3,448,784

​

$

65,198

​

$

(32,332)

​

$

3,481,650

(1) Other bonds includes asset-backed securities.

​

The amortized cost, gross unrealized gains and losses, and estimated fair values of AFS securities as of December 31, 2020 are summarized as follows (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Amortized

​

Gross Unrealized

​

Estimated

​

    

Cost

    

Gains

    

(Losses)

    

Fair Value

December 31, 2020

​

​

​

​

​

​

​

​

​

​

​

​

U.S. government and agency securities

​

$

13,009

​

$

437

​

$

(52)

​

$

13,394

Obligations of states and political subdivisions

​

​

786,466

​

​

50,878

​

​

(18)

​

​

837,326

Corporate and other bonds (1)

​

 

148,747

​

 

2,430

​

 

(99)

​

 

151,078

Commercial MBS

​

 

​

​

​

​

​

​

​

​

 

​

Agency

​

​

321,015

​

​

16,277

​

​

(2)

​

​

337,290

Non-agency

​

​

51,244

​

​

167

​

​

(17)

​

​

51,394

Total commercial MBS

​

​

372,259

​

​

16,444

​

​

(19)

​

​

388,684

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

1,012,237

​

​

31,816

​

​

(1,946)

​

​

1,042,107

Non-agency

​

​

104,904

​

​

1,507

​

​

(206)

​

​

106,205

Total residential MBS

​

​

1,117,141

​

​

33,323

​

​

(2,152)

​

​

1,148,312

Other securities

​

 

1,625

​

 

—

​

 

—

​

 

1,625

Total AFS securities

​

$

2,439,247

​

$

103,512

​

$

(2,340)

​

$

2,540,419

(1) Other bonds includes 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 for which an ACL has not been recorded at December 31, 2021 and 2020 and that are not deemed to be impaired as of those dates. 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

​

Losses

​

Value

​

Losses

December 31, 2021

​

 

​

​

 

​

​

 

​

​

 

​

​

 

​

​

 

​

U.S. government and agency securities

​

$

64,474

​

$

(115)

​

$

3,900

​

$

(45)

​

$

68,374

​

$

(160)

Obligations of states and political subdivisions

​

​

249,701

​

​

(2,020)

​

​

2,123

​

​

(53)

​

​

251,824

​

​

(2,073)

Corporate and other bonds(1)

​

 

21,134

​

 

(177)

​

 

703

​

 

(1)

​

 

21,837

​

 

(178)

Commercial MBS

​

 

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

175,588

​

​

(4,053)

​

​

3,172

​

​

(162)

​

​

178,760

​

​

(4,215)

Non-agency

​

​

33,759

​

​

(313)

​

​

11,029

​

​

(108)

​

​

44,788

​

​

(421)

Total commercial MBS

​

​

209,347

​

​

(4,366)

​

​

14,201

​

​

(270)

​

​

223,548

​

​

(4,636)

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

1,140,701

​

​

(21,147)

​

​

106,104

​

​

(3,190)

​

​

1,246,805

​

​

(24,337)

Non-agency

​

​

48,392

​

​

(584)

​

​

12,716

​

​

(364)

​

​

61,108

​

​

(948)

Total residential MBS

​

​

1,189,093

​

​

(21,731)

​

​

118,820

​

​

(3,554)

​

​

1,307,913

​

​

(25,285)

Total AFS securities

​

$

1,733,749

​

$

(28,409)

​

$

139,747

​

$

(3,923)

​

$

1,873,496

​

$

(32,332)

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

December 31, 2020

​

 

  

​

 

  

​

 

  

​

 

  

​

 

  

​

 

  

U.S. government and agency securities

​

$

—

​

$

—

​

$

5,456

​

$

(52)

​

$

5,456

​

$

(52)

Obligations of states and political subdivisions

​

​

5,091

​

​

(18)

​

​

—

​

​

—

​

​

5,091

​

​

(18)

Corporate and other bonds(1)

​

 

17,946

​

 

(52)

​

 

10,698

​

 

(47)

​

 

28,644

​

 

(99)

Commercial MBS

​

 

​

​

 

​

​

 

​

​

 

​

​

 

​

​

 

​

Agency

​

​

5,893

​

​

(2)

​

​

376

​

​

—

​

​

6,269

​

​

(2)

Non-agency

​

​

17,654

​

​

(17)

​

​

—

​

​

—

​

​

17,654

​

​

(17)

Total commercial MBS

​

​

23,547

​

​

(19)

​

​

376

​

​

—

​

​

23,923

​

​

(19)

Residential MBS

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Agency

​

​

219,388

​

​

(1,944)

​

​

1,055

​

​

(2)

​

​

220,443

​

​

(1,946)

Non-agency

​

​

36,942

​

​

(206)

​

​

—

​

​

—

​

​

36,942

​

​

(206)

Total residential MBS

​

​

256,330

​

​

(2,150)

​

​

1,055

​

​

(2)

​

​

257,385

​

​

(2,152)

Total AFS securities

​

$

302,914

​

$

(2,239)

​

$

17,585

​

$

(101)

​

$

320,499

​

$

(2,340)

​

(1) Other bonds includes asset-backed securities

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, 2021 and 2020, 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.

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

December 31, 2021

​

December 31, 2020

​

    

Amortized

    

Estimated

    

Amortized

    

Estimated

​

​

Cost

​

Fair Value

​

Cost

​

Fair Value

Due in one year or less

​

$

18,247

​

$

18,317

​

$

19,875

​

$

19,997

Due after one year through five years

​

 

180,080

​

 

183,981

​

 

161,448

​

 

169,103

Due after five years through ten years

​

 

324,615

​

 

331,215

​

 

235,021

​

 

242,791

Due after ten years

​

 

2,925,842

​

 

2,948,137

​

 

2,022,903

​

 

2,108,528

Total AFS securities

​

$

3,448,784

​

$

3,481,650

​

$

2,439,247

​

$

2,540,419

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, 2021 and 2020, 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.

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

December 31, 2021

​

December 31, 2020

​

    

Carrying

    

Estimated

    

Carrying

    

Estimated

​

​

Value

​

Fair Value

​

Value

​

Fair Value

Due in one year or less

​

$

3,034

​

$

3,027

​

$

1,443

​

$

1,460

Due after one year through five years

​

 

5,852

​

 

6,065

​

 

8,577

​

 

8,893

Due after five years through ten years

​

 

14,019

​

 

15,984

​

 

1,744

​

 

1,805

Due after ten years

​

 

605,095

​

 

668,698

​

 

533,087

​

 

607,607

Total HTM securities

​

$

628,000

​

$

693,774

​

$

544,851

​

$

619,765

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, 2021 are summarized as follows (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Carrying

​

Gross Unrealized

​

Estimated

​

    

Value

    

Gains

    

(Losses)

​

Fair Value

December 31, 2021

 

​

  

 

​

  

 

​

  

​

​

  

U.S. government and agency securities

​

$

2,604

​

$

—

​

$

(29)

​

$

2,575

Obligations of states and political subdivisions

​

​

620,873

​

​

65,982

​

​

(121)

​

​

686,734

Commercial MBS

​

 

​

​

​

​

​

​

​

​

​

​

Agency

​

​

4,523

​

​

—

​

​

(58)

​

​

4,465

Total commercial MBS

​

​

4,523

​

​

—

​

​

(58)

​

​

4,465

Total held-to-maturity securities

​

$

628,000

​

$

65,982

​

$

(208)

​

$

693,774

​

​

The carrying value, gross unrealized gains and losses, and estimated fair values of HTM securities as of December 31, 2020 are summarized as follows (dollars in thousands):

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Carrying

​

Gross Unrealized

​

Estimated

​

    

Value

    

Gains

    

(Losses)

    

Fair Value

December 31, 2020

​

 

  

​

 

  

​

 

  

​

 

  

U.S. government and agency securities

​

$

2,751

​

$

—

​

$

(18)

​

$

2,733

Obligations of states and political subdivisions

​

​

536,767

​

​

74,978

​

​

—

​

​

611,745

Commercial MBS

​

​

​

​

 

​

​

 

​

​

 

​

Agency

​

​

5,333

​

​

4

​

​

(50)

​

​

5,287

Total commercial MBS

​

​

5,333

​

​

4

​

​

(50)

​

​

5,287

Total held-to-maturity securities

​

$

544,851

​

$

74,982

​

$

(68)

​

$

619,765