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Investment Securities (Tables) | 3 Months Ended
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Mar. 31, 2025
Investments, Debt and Equity Securities [Abstract] |
Schedule of available-for-sale securities reconciliation | The following tables present amortized cost, gross unrealized gains and losses, and fair values of AFS securities as of the dates indicated:
| March 31, 2025
|  |  |  |  |  |  | Gross |  | Gross |  |
| Amortized |  |  |  |  |  | Unrealized |  | Unrealized |  | Fair
Security Type | Cost |  |  |  |  |  | Gains |  | Losses |  | Value
| (In thousands)
Agency residential MBS | $ | 1,033,674 |  |  |  |  |  |  | $ | — |  |  | $ | (166,632) |  |  | $ | 867,042 |
Agency commercial MBS | 62,126 |  |  |  |  |  |  | — |  |  | (922) |  |  | 61,204 |
Agency residential CMOs | 579,676 |  |  |  |  |  |  | 2,541 |  |  | (17,149) |  |  | 565,068 |
Municipal securities | 602 |  |  |  |  |  |  | — |  |  | (5) |  |  | 597 |
Corporate debt securities | 289,077 |  |  |  |  |  |  | 423 |  |  | (26,097) |  |  | 263,403 |
Private label residential CMOs | 334,859 |  |  |  |  |  |  | 126 |  |  | (31,658) |  |  | 303,327 |
Collateralized loan obligations | 243,485 |  |  |  |  |  |  | 59 |  |  | (659) |  |  | 242,885 |
Private label commercial MBS | 12,533 |  |  |  |  |  |  | — |  |  | (1,087) |  |  | 11,446 |
Asset-backed securities | 15,238 |  |  |  |  |  |  | — |  |  | (14) |  |  | 15,224 |
SBA securities | 4,123 |  |  |  |  |  |  | — |  |  | (261) |  |  | 3,862 |
Total (1) | $ | 2,575,393 |  |  |  |  |  |  | $ | 3,149 |  |  | $ | (244,484) |  |  | $ | 2,334,058 |
_________________________ (1) Excludes accrued interest receivable of $13.0 million at March 31, 2025 which is recorded in "Other assets" on the condensed consolidated balance sheets.
| December 31, 2024
|  |  |  |  |  |  | Gross |  | Gross |  |
| Amortized |  |  |  |  |  | Unrealized |  | Unrealized |  | Fair
Security Type | Cost |  |  |  |  |  | Gains |  | Losses |  | Value
| (In thousands)
Agency residential MBS | $ | 1,051,601 |  |  |  |  |  |  | $ | — |  |  | $ | (189,761) |  |  | $ | 861,840 |
Agency commercial MBS | 52,610 |  |  |  |  |  |  | — |  |  | (1,046) |  |  | 51,564 |
Agency residential CMOs | 467,319 |  |  |  |  |  |  | 223 |  |  | (20,911) |  |  | 446,631 |
Municipal securities | 602 |  |  |  |  |  |  | — |  |  | (8) |  |  | 594 |
Corporate debt securities | 289,098 |  |  |  |  |  |  | — |  |  | (31,386) |  |  | 257,712 |
Private label residential CMOs | 352,615 |  |  |  |  |  |  | 7 |  |  | (35,712) |  |  | 316,910 |
Collateralized loan obligations | 278,976 |  |  |  |  |  |  | 469 |  |  | (29) |  |  | 279,416 |
Private label commercial MBS | 13,585 |  |  |  |  |  |  | — |  |  | (1,213) |  |  | 12,372 |
Asset-backed securities | 15,674 |  |  |  |  |  |  | — |  |  | (74) |  |  | 15,600 |
SBA securities | 4,564 |  |  |  |  |  |  | — |  |  | (364) |  |  | 4,200 |
Total (1) | $ | 2,526,644 |  |  |  |  |  |  | $ | 699 |  |  | $ | (280,504) |  |  | $ | 2,246,839 |
_________________________ (1) Excludes accrued interest receivable of $12.6 million at December 31, 2024 which is recorded in "Other assets" on the condensed consolidated balance sheets.
Unrealized losses on investment securities available-for-sale | The following tables present the gross unrealized losses and fair values of AFS securities that were in unrealized loss positions as of the dates indicated:
| March 31, 2025
| Less Than 12 Months |  | 12 Months or More |  | Total
|  |  | Gross |  |  |  | Gross |  |  |  | Gross
| Fair |  | Unrealized |  | Fair |  | Unrealized |  | Fair |  | Unrealized
Security Type | Value |  | Losses |  | Value |  | Losses |  | Value |  | Losses
| (In thousands)
Agency residential MBS | $ | — |  |  | $ | — |  |  | $ | 867,042 |  |  | $ | (166,632) |  |  | $ | 867,042 |  |  | $ | (166,632) |
Agency commercial MBS | 49,911 |  |  | (41) |  |  | 11,293 |  |  | (881) |  |  | 61,204 |  |  | (922) |
Agency residential CMOs | 27,981 |  |  | (66) |  |  | 104,865 |  |  | (17,083) |  |  | 132,846 |  |  | (17,149) |
Municipal securities | — |  |  | — |  |  | 597 |  |  | (5) |  |  | 597 |  |  | (5) |
Corporate debt securities | — |  |  | — |  |  | 240,730 |  |  | (26,097) |  |  | 240,730 |  |  | (26,097) |
Private label residential CMOs | 97,388 |  |  | (285) |  |  | 129,803 |  |  | (31,373) |  |  | 227,191 |  |  | (31,658) |
Collateralized loan obligations | 180,076 |  |  | (659) |  |  | — |  |  | — |  |  | 180,076 |  |  | (659) |
Private label commercial MBS | — |  |  | — |  |  | 11,446 |  |  | (1,087) |  |  | 11,446 |  |  | (1,087) |
Asset-backed securities | 15,224 |  |  | (14) |  |  | — |  |  | — |  |  | 15,224 |  |  | (14) |
SBA securities | — |  |  | — |  |  | 3,862 |  |  | (261) |  |  | 3,862 |  |  | (261) |
Total | $ | 370,580 |  |  | $ | (1,065) |  |  | $ | 1,369,638 |  |  | $ | (243,419) |  |  | $ | 1,740,218 |  |  | $ | (244,484) |
| December 31, 2024
| Less Than 12 Months |  | 12 Months or More |  | Total
|  |  | Gross |  |  |  | Gross |  |  |  | Gross
| Fair |  | Unrealized |  | Fair |  | Unrealized |  | Fair |  | Unrealized
Security Type | Value |  | Losses |  | Value |  | Losses |  | Value |  | Losses
| (In thousands)
Agency residential MBS | $ | — |  |  | $ | — |  |  | $ | 861,840 |  |  | $ | (189,761) |  |  | $ | 861,840 |  |  | $ | (189,761) |
Agency commercial MBS | 40,291 |  |  | (87) |  |  | 11,273 |  |  | (959) |  |  | 51,564 |  |  | (1,046) |
Agency residential CMOs | 273,347 |  |  | (1,994) |  |  | 104,757 |  |  | (18,917) |  |  | 378,104 |  |  | (20,911) |
Municipal securities | — |  |  | — |  |  | 594 |  |  | (8) |  |  | 594 |  |  | (8) |
Corporate debt securities | 15,968 |  |  | (32) |  |  | 241,744 |  |  | (31,354) |  |  | 257,712 |  |  | (31,386) |
Private label residential CMOs | 180,915 |  |  | (1,031) |  |  | 129,178 |  |  | (34,681) |  |  | 310,093 |  |  | (35,712) |
Collateralized loan obligations | 38,771 |  |  | (29) |  |  | — |  |  | — |  |  | 38,771 |  |  | (29) |
Private label commercial MBS | — |  |  | — |  |  | 12,372 |  |  | (1,213) |  |  | 12,372 |  |  | (1,213) |
Asset-backed securities | 15,600 |  |  | (74) |  |  | — |  |  | — |  |  | 15,600 |  |  | (74) |
SBA securities | — |  |  | — |  |  | 4,200 |  |  | (364) |  |  | 4,200 |  |  | (364) |
Total | $ | 564,892 |  |  | $ | (3,247) |  |  | $ | 1,365,958 |  |  | $ | (277,257) |  |  | $ | 1,930,850 |  |  | $ | (280,504) |
Schedule of held-to-maturity securities reconciliation | The following tables present amortized cost, allowance for credit losses, gross unrealized gains and losses, and fair values of HTM securities as of the dates indicated:
| March 31, 2025
|  |  | Allowance |  |  |  |  |  |  |  |
|  |  | for |  | Net |  | Gross |  | Gross |  |
| Amortized |  | Credit |  | Carrying |  | Unrealized |  | Unrealized |  | Fair
Security Type | Cost |  | Losses |  | Amount |  | Gains |  | Losses |  | Value
| (In thousands)
Municipal securities | $ | 1,252,455 |  |  | $ | (20) |  |  | $ | 1,252,435 |  |  | $ | 61 |  |  | $ | (59,663) |  |  | $ | 1,192,833 |
Agency commercial MBS | 442,172 |  |  | — |  |  | 442,172 |  |  | — |  |  | (28,137) |  |  | 414,035 |
Private label commercial MBS | 356,586 |  |  | — |  |  | 356,586 |  |  | — |  |  | (19,841) |  |  | 336,745 |
U.S. Treasury securities | 190,726 |  |  | — |  |  | 190,726 |  |  | — |  |  | (12,291) |  |  | 178,435 |
Corporate debt securities | 70,573 |  |  | (580) |  |  | 69,993 |  |  | — |  |  | (12,131) |  |  | 57,862 |
Total (1) | $ | 2,312,512 |  |  | $ | (600) |  |  | $ | 2,311,912 |  |  | $ | 61 |  |  | $ | (132,063) |  |  | $ | 2,179,910 |
__________________________ (1) Excludes accrued interest receivable of $11.3 million at March 31, 2025 which is recorded in "Other assets" on the condensed consolidated balance sheets.
| December 31, 2024
|  |  | Allowance |  |  |  |  |  |  |  |
|  |  | for |  | Net |  | Gross |  | Gross |  |
| Amortized |  | Credit |  | Carrying |  | Unrealized |  | Unrealized |  | Fair
Security Type | Cost |  | Losses |  | Amount |  | Gains |  | Losses |  | Value
| (In thousands)
Municipal securities | $ | 1,251,364 |  |  | $ | (140) |  |  | $ | 1,251,224 |  |  | $ | 35 |  |  | $ | (54,799) |  |  | $ | 1,196,460 |
Agency commercial MBS | 440,476 |  |  | — |  |  | 440,476 |  |  | — |  |  | (37,840) |  |  | 402,636 |
Private label commercial MBS | 355,342 |  |  | — |  |  | 355,342 |  |  | — |  |  | (26,226) |  |  | 329,116 |
U.S. Treasury securities | 189,985 |  |  | — |  |  | 189,985 |  |  | — |  |  | (16,702) |  |  | 173,283 |
Corporate debt securities | 70,482 |  |  | (1,360) |  |  | 69,122 |  |  | — |  |  | (13,923) |  |  | 55,199 |
Total (1) | $ | 2,307,649 |  |  | $ | (1,500) |  |  | $ | 2,306,149 |  |  | $ | 35 |  |  | $ | (149,490) |  |  | $ | 2,156,694 |
__________________________ (1) Excludes accrued interest receivable of $13.4 million at December 31, 2024 which is recorded in "Other assets" on the condensed consolidated balance sheets.
Debt Securities, Held-to-maturity, Allowance for Credit Loss | The following tables present the changes by major security type in our allowance for credit losses on HTM securities for the periods indicated:
| Three Months Ended March 31, 2025
| Allowance for |  | Provision |  |  |  |  |  | Allowance for
| Credit Losses, |  | for |  |  |  |  |  | Credit Losses,
| Beginning |  | Credit |  |  |  |  |  | End of
Security Type | of Period |  | Losses |  | Charge-offs |  | Recoveries |  | Period
| (In thousands)
Municipal securities | $ | 140 |  |  | $ | (120) |  |  | $ | — |  |  | $ | — |  |  | $ | 20 |
Corporate debt securities | 1,360 |  |  | (780) |  |  | — |  |  | — |  |  | 580 |
Total | $ | 1,500 |  |  | $ | (900) |  |  | $ | — |  |  | $ | — |  |  | $ | 600 |
| Three Months Ended March 31, 2024
| Allowance for |  | Provision |  |  |  |  |  | Allowance for
| Credit Losses, |  | for |  |  |  |  |  | Credit Losses,
| Beginning |  | Credit |  |  |  |  |  | End of
Security Type | of Period |  | Losses |  | Charge-offs |  | Recoveries |  | Period
| (In thousands)
Municipal securities | $ | 140 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 140 |
Corporate debt securities | 1,360 |  |  | — |  |  | — |  |  | — |  |  | 1,360 |
Total | $ | 1,500 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 1,500 |
Debt Securities, Held-to-maturity, Credit Quality Indicator | The following tables present our HTM securities portfolio at amortized cost by the lowest available credit rating as of the dates indicated:
| March 31, 2025
Security Type | AAA |  | AA+ |  | AA |  | AA- |  |  |  | A |  |  |  | BBB |  | NR |  | Total
| (In thousands)
Amortized Cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal securities | $ | 571,520 |  |  | $ | 369,314 |  |  | $ | 219,130 |  |  | $ | 73,070 |  |  |  |  | $ | 1,664 |  |  |  |  | $ | — |  |  | $ | 17,757 |  |  | $ | 1,252,455 |
Agency commercial MBS | — |  |  | 442,172 |  |  | — |  |  | — |  |  |  |  | — |  |  |  |  | — |  |  | — |  |  | 442,172 |
Private label commercial MBS | 356,586 |  |  | — |  |  | — |  |  | — |  |  |  |  | — |  |  |  |  | — |  |  | — |  |  | 356,586 |
U.S. Treasury securities | — |  |  | 190,726 |  |  | — |  |  | — |  |  |  |  | — |  |  |  |  | — |  |  | — |  |  | 190,726 |
Corporate debt securities | — |  |  | — |  |  | — |  |  | — |  |  |  |  | — |  |  |  |  | 44,542 |  |  | 26,031 |  |  | 70,573 |
Total | $ | 928,106 |  |  | $ | 1,002,212 |  |  | $ | 219,130 |  |  | $ | 73,070 |  |  |  |  | $ | 1,664 |  |  |  |  | $ | 44,542 |  |  | $ | 43,788 |  |  | $ | 2,312,512 |
| December 31, 2024
Security Type | AAA |  | AA+ |  | AA |  | AA- |  |  |  | A |  |  |  | BBB |  | NR |  | Total
| (In thousands)
Amortized Cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal securities | $ | 571,347 |  |  | $ | 369,072 |  |  | $ | 218,581 |  |  | $ | 72,952 |  |  |  |  | $ | 1,667 |  |  |  |  | $ | — |  |  | $ | 17,745 |  |  | $ | 1,251,364 |
Agency commercial MBS | — |  |  | 440,476 |  |  | — |  |  | — |  |  |  |  | — |  |  |  |  | — |  |  | — |  |  | 440,476 |
Private label commercial MBS | 355,342 |  |  | — |  |  | — |  |  | — |  |  |  |  | — |  |  |  |  | — |  |  | — |  |  | 355,342 |
U.S. Treasury securities | — |  |  | 189,985 |  |  | — |  |  | — |  |  |  |  | — |  |  |  |  | — |  |  | — |  |  | 189,985 |
Corporate debt securities | — |  |  | — |  |  | — |  |  | — |  |  |  |  | — |  |  |  |  | 44,507 |  |  | 25,975 |  |  | 70,482 |
Total | $ | 926,689 |  |  | $ | 999,533 |  |  | $ | 218,581 |  |  | $ | 72,952 |  |  |  |  | $ | 1,667 |  |  |  |  | $ | 44,507 |  |  | $ | 43,720 |  |  | $ | 2,307,649 |
Investment income | The following table presents the composition of our interest income on AFS and HTM investment securities for the periods indicated:
| Three Months Ended |  |
| March 31, |  |
| 2025 |  | 2024 |  |  |  |
| (In thousands)
Taxable interest | $ | 31,447 |  |  | $ | 27,601 |  |  |  |  |
Non-taxable interest | 4,517 |  |  | 4,720 |  |  |  |  |
Dividend income | 1,898 |  |  | 1,982 |  |  |  |  |
Total interest income on investment securities | $ | 37,862 |  |  | $ | 34,303 |  |  |  |  |
Available-for-sale Investments Classified by Contractual Maturity Date | The following tables present the contractual maturities of our AFS securities portfolio based on amortized cost and fair value as of the dates indicated:
| March 31, 2025
|  |  | Due After |  | Due After |  |  |  |
| Due |  | One Year |  | Five Years |  | Due |  |
| Within |  | Through |  | Through |  | After |  |
Security Type | One Year |  | Five Years |  | Ten Years |  | Ten Years |  | Total
| (In thousands)
Amortized Cost: |  |  |  |  |  |  |  |  |
Agency residential MBS | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 1,033,674 |  |  | $ | 1,033,674 |
Agency commercial MBS | — |  |  | 39,959 |  |  | 9,994 |  |  | 12,173 |  |  | 62,126 |
Agency residential CMOs | — |  |  | — |  |  | 14,655 |  |  | 565,021 |  |  | 579,676 |
Municipal securities | — |  |  | 602 |  |  | — |  |  | — |  |  | 602 |
Corporate debt securities | — |  |  | 7,500 |  |  | 281,577 |  |  | — |  |  | 289,077 |
Private label residential CMOs | — |  |  | — |  |  | — |  |  | 334,859 |  |  | 334,859 |
Collateralized loan obligations | — |  |  | — |  |  | 136,918 |  |  | 106,567 |  |  | 243,485 |
Private label commercial MBS | — |  |  | — |  |  | 580 |  |  | 11,953 |  |  | 12,533 |
Asset-backed securities | — |  |  | — |  |  | — |  |  | 15,238 |  |  | 15,238 |
SBA securities | — |  |  | — |  |  | 4,123 |  |  | — |  |  | 4,123 |
Total | $ | — |  |  | $ | 48,061 |  |  | $ | 447,847 |  |  | $ | 2,079,485 |  |  | $ | 2,575,393 |
| March 31, 2025
|  |  | Due After |  | Due After |  |  |  |
| Due |  | One Year |  | Five Years |  | Due |  |
| Within |  | Through |  | Through |  | After |  |
Security Type | One Year |  | Five Years |  | Ten Years |  | Ten Years |  | Total
| (In thousands)
Fair Value: |  |  |  |  |  |  |  |  |
Agency residential MBS | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 867,042 |  |  | $ | 867,042 |
Agency commercial MBS | — |  |  | 39,928 |  |  | 9,983 |  |  | 11,293 |  |  | 61,204 |
Agency residential CMOs | — |  |  | — |  |  | 14,775 |  |  | 550,293 |  |  | 565,068 |
Municipal securities | — |  |  | 597 |  |  | — |  |  | — |  |  | 597 |
Corporate debt securities | — |  |  | 7,354 |  |  | 256,049 |  |  | — |  |  | 263,403 |
Private label residential CMOs | — |  |  | — |  |  | — |  |  | 303,327 |  |  | 303,327 |
Collateralized loan obligations | — |  |  | — |  |  | 136,471 |  |  | 106,414 |  |  | 242,885 |
Private label commercial MBS | — |  |  | — |  |  | 571 |  |  | 10,875 |  |  | 11,446 |
Asset-backed securities | — |  |  | — |  |  | — |  |  | 15,224 |  |  | 15,224 |
SBA securities | — |  |  | — |  |  | 3,862 |  |  | — |  |  | 3,862 |
Total | $ | — |  |  | $ | 47,879 |  |  | $ | 421,711 |  |  | $ | 1,864,468 |  |  | $ | 2,334,058 |
Held-to-Maturity Investments Classified by Contractual Maturity Date | The following tables present the contractual maturities of our HTM securities portfolio based on amortized cost and fair value as of the date indicated:
| March 31, 2025
|  |  | Due After |  | Due After |  |  |  |
| Due |  | One Year |  | Five Years |  | Due |  |
| Within |  | Through |  | Through |  | After |  |
Security Type | One Year |  | Five Years |  | Ten Years |  | Ten Years |  | Total
| (In thousands)
Amortized Cost: |  |  |  |  |  |  |  |  |
Municipal securities | $ | — |  |  | $ | 20,359 |  |  | $ | 477,179 |  |  | $ | 754,917 |  |  | $ | 1,252,455 |
Agency commercial MBS | — |  |  | 32,138 |  |  | 410,034 |  |  | — |  |  | 442,172 |
Private label commercial MBS | — |  |  | — |  |  | 36,959 |  |  | 319,627 |  |  | 356,586 |
U.S. Treasury securities | — |  |  | — |  |  | 190,726 |  |  | — |  |  | 190,726 |
Corporate debt securities | — |  |  | — |  |  | 10,141 |  |  | 60,432 |  |  | 70,573 |
Total | $ | — |  |  | $ | 52,497 |  |  | $ | 1,125,039 |  |  | $ | 1,134,976 |  |  | $ | 2,312,512 |
| March 31, 2025
|  |  | Due After |  | Due After |  |  |  |
| Due |  | One Year |  | Five Years |  | Due |  |
| Within |  | Through |  | Through |  | After |  |
Security Type | One Year |  | Five Years |  | Ten Years |  | Ten Years |  | Total
| (In thousands)
Fair Value: |  |  |  |  |  |  |  |  |
Municipal securities | $ | — |  |  | $ | 20,333 |  |  | $ | 459,469 |  |  | $ | 713,031 |  |  | $ | 1,192,833 |
Agency commercial MBS | — |  |  | 30,082 |  |  | 383,953 |  |  | — |  |  | 414,035 |
Private label commercial MBS | — |  |  | — |  |  | 35,137 |  |  | 301,608 |  |  | 336,745 |
U.S. Treasury securities | — |  |  | — |  |  | 178,435 |  |  | — |  |  | 178,435 |
Corporate debt securities | — |  |  | — |  |  | 9,800 |  |  | 48,062 |  |  | 57,862 |
Total | $ | — |  |  | $ | 50,415 |  |  | $ | 1,066,794 |  |  | $ | 1,062,701 |  |  | $ | 2,179,910 |

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- Definition Held-to-Maturity Investments Classified by Contractual Maturity Date + References No definition available. + Details
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- Definition Tabular disclosure of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
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