XML 32 R22.htm IDEA: XBRL DOCUMENT v3.23.1
Investment Securities (Tables)
3 Months Ended
Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]  
Summary of Amortized Cost and Estimated Fair Value of Investment Securities

 

March 31, 2023

 

 

Amortized Cost

 

 

Gross Unrealized Holding Gain

 

 

Gross Unrealized Holding Loss

 

 

Fair Value

 

 

Total Percent

 

 

(Dollars in thousands)

 

Investment securities available-for-sale:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mortgage-backed securities

$

3,109,387

 

 

$

41

 

 

$

(361,563

)

 

$

2,747,865

 

 

 

85.75

%

CMO/REMIC

 

526,922

 

 

 

 

 

 

(97,500

)

 

 

429,422

 

 

 

13.39

%

Municipal bonds

 

26,796

 

 

 

80

 

 

 

(718

)

 

 

26,158

 

 

 

0.82

%

Other securities

 

1,079

 

 

 

 

 

 

 

 

 

1,079

 

 

 

0.04

%

Total available-for-sale securities

$

3,664,184

 

 

$

121

 

 

$

(459,781

)

 

$

3,204,524

 

 

 

100.00

%

Investment securities held-to-maturity:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Government agency/GSE

$

543,318

 

 

$

 

 

$

(100,496

)

 

$

442,822

 

 

 

21.42

%

Mortgage-backed securities

 

697,766

 

 

 

 

 

 

(97,818

)

 

 

599,948

 

 

 

27.51

%

CMO/REMIC

 

822,599

 

 

 

 

 

 

(134,774

)

 

 

687,825

 

 

 

32.44

%

Municipal bonds

 

472,296

 

 

 

2,405

 

 

 

(36,727

)

 

 

437,974

 

 

 

18.63

%

Total held-to-maturity securities

$

2,535,979

 

 

$

2,405

 

 

$

(369,815

)

 

$

2,168,569

 

 

 

100.00

%

 

 

December 31, 2022

 

 

Amortized Cost

 

 

Gross Unrealized Holding Gain

 

 

Gross Unrealized Holding Loss

 

 

Fair Value

 

 

Total Percent

 

 

(Dollars in thousands)

 

Investment securities available-for-sale:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mortgage-backed securities

$

3,192,151

 

 

$

39

 

 

$

(403,049

)

 

$

2,789,141

 

 

 

85.68

%

CMO/REMIC

 

535,269

 

 

 

 

 

 

(95,966

)

 

 

439,303

 

 

 

13.50

%

Municipal bonds

 

26,797

 

 

 

67

 

 

 

(1,177

)

 

 

25,687

 

 

 

0.79

%

Other securities

 

1,080

 

 

 

 

 

 

 

 

 

1,080

 

 

 

0.03

%

Total available-for-sale securities

$

3,755,297

 

 

$

106

 

 

$

(500,192

)

 

$

3,255,211

 

 

 

100.00

%

Investment securities held-to-maturity:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Government agency/GSE

$

548,771

 

 

$

 

 

$

(114,343

)

 

$

434,428

 

 

 

21.48

%

Mortgage-backed securities

 

706,796

 

 

 

 

 

 

(105,867

)

 

 

600,929

 

 

 

27.67

%

CMO/REMIC

 

827,346

 

 

 

 

 

 

(131,730

)

 

 

695,616

 

 

 

32.39

%

Municipal bonds

 

471,388

 

 

 

913

 

 

 

(47,687

)

 

 

424,614

 

 

 

18.46

%

Total held-to-maturity securities

$

2,554,301

 

 

$

913

 

 

$

(399,627

)

 

$

2,155,587

 

 

 

100.00

%

 

Summary of Interest Income Earned on Investment Securities

The following table provides information about the amount of interest income earned on investment securities which is fully taxable and which is exempt from regular federal income tax.

 

 

Three Months Ended

 

 

March 31,

 

 

2023

 

 

2022

 

 

(Dollars in thousands)

 

Investment securities available-for-sale:

 

 

 

 

 

Taxable

$

19,428

 

 

$

12,649

 

Tax-advantaged

 

168

 

 

 

183

 

Total interest income from available-for-sale securities

 

19,596

 

 

 

12,832

 

Investment securities held-to-maturity:

 

 

 

 

 

Taxable

 

11,507

 

 

 

9,105

 

Tax-advantaged

 

2,449

 

 

 

1,558

 

Total interest income from held-to-maturity securities

 

13,956

 

 

 

10,663

 

Total interest income from investment securities

$

33,552

 

 

$

23,495

 

 

A
Summary of Continuous Unrealized Loss Position of Securities

The following table presents the Company’s available-for-sale and held-to-maturity investment securities, by investment category, in an unrealized loss position for which an allowance for credit losses has not been recorded as of March 31, 2023 and December 31, 2022.

 

 

March 31, 2023

 

 

Less Than 12 Months

 

 

12 Months or Longer

 

 

Total

 

 

Fair Value

 

 

Gross Unrealized Holding Losses

 

 

Fair Value

 

 

Gross Unrealized Holding Losses

 

 

Fair Value

 

 

Gross Unrealized Holding Losses

 

 

(Dollars in thousands)

 

Investment securities available-for-sale:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mortgage-backed securities

$

753,978

 

 

$

(43,323

)

 

$

1,992,196

 

 

$

(318,240

)

 

$

2,746,174

 

 

$

(361,563

)

CMO/REMIC

 

6,062

 

 

 

(148

)

 

 

423,357

 

 

 

(97,352

)

 

 

429,419

 

 

 

(97,500

)

Municipal bonds

 

4,141

 

 

 

(51

)

 

 

14,660

 

 

 

(667

)

 

 

18,801

 

 

 

(718

)

Total available-for-sale securities

$

764,181

 

 

$

(43,522

)

 

$

2,430,213

 

 

$

(416,259

)

 

$

3,194,394

 

 

$

(459,781

)

Investment securities held-to-maturity:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Government agency/GSE

$

23,225

 

 

$

(579

)

 

$

419,597

 

 

$

(99,917

)

 

$

442,822

 

 

$

(100,496

)

Mortgage-backed securities

 

128,307

 

 

 

(2,858

)

 

 

471,641

 

 

 

(94,960

)

 

 

599,948

 

 

 

(97,818

)

CMO/REMIC

 

48,202

 

 

 

(2,033

)

 

 

639,623

 

 

 

(132,741

)

 

 

687,825

 

 

 

(134,774

)

Municipal bonds

 

98,653

 

 

 

(2,271

)

 

 

220,735

 

 

 

(34,456

)

 

 

319,388

 

 

 

(36,727

)

Total held-to-maturity securities

$

298,387

 

 

$

(7,741

)

 

$

1,751,596

 

 

$

(362,074

)

 

$

2,049,983

 

 

$

(369,815

)

 

 

 

December 31, 2022

 

 

Less Than 12 Months

 

 

12 Months or Longer

 

 

Total

 

 

Fair Value

 

 

Gross Unrealized Holding Losses

 

 

Fair Value

 

 

Gross Unrealized Holding Losses

 

 

Fair Value

 

 

Gross Unrealized Holding Losses

 

 

(Dollars in thousands)

 

Investment securities available-for-sale:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mortgage-backed securities

$

1,658,331

 

 

$

(187,842

)

 

$

1,129,257

 

 

$

(215,207

)

 

$

2,787,588

 

 

$

(403,049

)

CMO/REMIC

 

54,005

 

 

 

(4,796

)

 

 

385,295

 

 

 

(91,170

)

 

 

439,300

 

 

 

(95,966

)

Municipal bonds

 

24,507

 

 

 

(1,177

)

 

 

-

 

 

 

-

 

 

 

24,507

 

 

 

(1,177

)

Total available-for-sale securities

$

1,736,843

 

 

$

(193,815

)

 

$

1,514,552

 

 

$

(306,377

)

 

$

3,251,395

 

 

$

(500,192

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Investment securities held-to-maturity:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Government agency/GSE

 

179,348

 

 

 

(39,866

)

 

 

255,080

 

 

 

(74,477

)

 

 

434,428

 

 

 

(114,343

)

Mortgage-backed securities

 

188,480

 

 

 

(9,042

)

 

 

412,449

 

 

 

(96,825

)

 

 

600,929

 

 

 

(105,867

)

CMO/REMIC

 

376,540

 

 

 

(60,598

)

 

 

319,076

 

 

 

(71,132

)

 

 

695,616

 

 

 

(131,730

)

Municipal bonds

 

312,702

 

 

 

(35,656

)

 

 

53,350

 

 

 

(12,031

)

 

 

366,052

 

 

 

(47,687

)

Total held-to-maturity securities

$

1,057,070

 

 

$

(145,162

)

 

$

1,039,955

 

 

$

(254,465

)

 

$

2,097,025

 

 

$

(399,627

)

 

Summary of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity Mortgage-backed and CMO/REMIC securities are included in maturity categories based upon estimated average lives which incorporate estimated prepayment speeds.

 

 

March 31, 2023

 

 

Available-for-sale

 

 

Held-to-maturity

 

 

Amortized Cost

 

 

Fair Value

 

 

Amortized Cost

 

 

Fair Value

 

 

 

 

 

(Dollars in thousands)

 

 

 

 

Due in one year or less

$

1,495

 

 

$

1,500

 

 

$

11,608

 

 

$

11,147

 

Due after one year through five years

 

327,651

 

 

 

314,059

 

 

 

35,679

 

 

 

34,823

 

Due after five years through ten years

 

1,945,392

 

 

 

1,688,229

 

 

 

299,200

 

 

 

270,717

 

Due after ten years

 

1,389,646

 

 

 

1,200,736

 

 

 

2,189,492

 

 

 

1,851,882

 

Total investment securities

$

3,664,184

 

 

$

3,204,524

 

 

$

2,535,979

 

 

$

2,168,569