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DEPOSITS AND RELATED INTEREST (Tables) | 9 Months Ended
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Sep. 30, 2025
Deposits and Related Interest [Abstract] |
Schedule of Deposits by Component | Total deposits, including related accrued interest payable, as of September 30, 2025 and December 31, 2024 consist of the following:
| September 30, |  | December 31,
| 2025 |  | 2024
| (In thousands)
Non-interest-bearing demand deposits | $ | 2,584,718 |  |  | $ | 2,493,860 |
Interest-bearing savings and demand deposits | 5,415,453 |  |  | 5,198,462 |
Retail certificates of deposit | 1,216,768 |  |  | 1,170,560 |
Institutional certificates of deposit | 602,629 |  |  | 585,829 |
Total core deposits | 9,819,568 |  |  | 9,448,711 |
Brokered deposits | 189,065 |  |  | 156,075 |
Total deposits | $ | 10,008,633 |  |  | $ | 9,604,786 |
Schedule of Interest Expense | Interest expense for the quarters and nine-month periods ended September 30, 2025 and 2024 was as follows:
| Quarters Ended September 30, |  | Nine-Month Periods Ended September 30, |  |
| 2025 |  | 2024 |  | 2025 |  | 2024 |  |
| (In thousands)
Demand and savings deposits | $ | 23,097 |  |  | $ | 25,921 |  |  | $ | 65,532 |  |  | $ | 78,668 |  |  |
Certificates of deposit | 16,645 |  |  | 12,423 |  |  | 48,381 |  |  | 34,280 |  |  |
| $ | 39,742 |  |  | $ | 38,344 |  |  | $ | 113,913 |  |  | $ | 112,948 |  |  |
Schedule of Time Deposit Maturities | Excluding accrued interest of approximately $4.2 million and $3.1 million, the scheduled maturities of certificates of deposit at September 30, 2025 and December 31, 2024 are as follows:
| September 30, 2025 |  | December 31, 2024
| Period-end amount |  | Uninsured amount |  | Period-end amount |  | Uninsured amount
| (In thousands)
Within one year: |  |  |  |  |  |  |
Three months or less | $ | 430,860 |  |  | $ | 220,143 |  |  | $ | 645,919 |  |  | $ | 336,912 |
Over 3 months through 6 months | 425,766 |  |  | 250,982 |  |  | 293,693 |  |  | 99,596 |
Over 6 months through 1 year | 756,832 |  |  | 265,447 |  |  | 492,799 |  |  | 201,877 |
| 1,613,458 |  |  | 736,572 |  |  | 1,432,411 |  |  | 638,385 |
Over 1 through 2 years | 258,977 |  |  | 53,408 |  |  | 340,176 |  |  | 95,690 |
Over 2 through 3 years | 69,228 |  |  | 4,666 |  |  | 63,044 |  |  | 9,017 |
Over 3 through 4 years | 30,728 |  |  | 4,237 |  |  | 39,462 |  |  | 4,176 |
Over 4 through 5 years | 31,697 |  |  | 4,360 |  |  | 33,549 |  |  | 4,084 |
Over 5 years | 189 |  |  | — |  |  | 722 |  |  | 115 |
| $ | 2,004,277 |  |  | $ | 803,243 |  |  | $ | 1,909,364 |  |  | $ | 751,467 |

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- Definition Tabular disclosure of type of deposit liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph e -Publisher SEC Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph d -Publisher SEC Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph c -Publisher SEC Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph a -Subparagraph (5) -Publisher SEC Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph a -Subparagraph (4) -Publisher SEC Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph a -Subparagraph (3) -Publisher SEC Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph a -Subparagraph (2) -Publisher SEC Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph a -Subparagraph (1) -Publisher SEC Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph a -Publisher SEC Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph f -Subparagraph (1) -Publisher SEC Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph f -Subparagraph (2) -Publisher SEC Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph f -Subparagraph (2)(i) -Publisher SEC Reference 13: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph f -Subparagraph (2)(iv) -Publisher SEC Reference 14: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph f -Subparagraph (2)(iii) -Publisher SEC Reference 15: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1406 -Paragraph f -Subparagraph (2)(ii) -Publisher SEC + Details
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