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Securities (Tables) | 3 Months Ended
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Mar. 31, 2023
Securities [Abstract] |
Amortized Cost, Estimated Fair Value and Unrealized Gains (Losses) of Available for Sale ("AFS") Securities | The amortized cost, estimated fair value and unrealized gains (losses) of available for sale (“AFS”) securities are as follows:
(In thousands) |  | Amortized Cost |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Estimated Fair Value |
As of March 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury |  | $ | 132,878 |  |  | $ | - |  |  | $ | (9,299 | ) |  | $ | 123,579 |
Federal agency |  |  | 248,410 |  |  |  | - |  |  |  | (38,190 | ) |  |  | 210,220 |
State & municipal |  |  | 96,841 |  |  |  | 17 |  |  |  | (11,825 | ) |  |  | 85,033 |
Mortgage-backed: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government-sponsored enterprises |  |  | 440,537 |  |  |  | 12 |  |  |  | (48,986 | ) |  |  | 391,563 |
U.S. government agency securities |  |  | 78,234 |  |  |  | 16 |  |  |  | (6,235 | ) |  |  | 72,015 |
Collateralized mortgage obligations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government-sponsored enterprises |  |  | 486,538 |  |  |  | 14 |  |  |  | (51,869 | ) |  |  | 434,683 |
U.S. government agency securities |  |  | 169,088 |  |  |  | - |  |  |  | (21,410 | ) |  |  | 147,678 |
Corporate |  |  | 55,414 |  |  |  | - |  |  |  | (8,177 | ) |  |  | 47,237 |
Total AFS securities |  | $ | 1,707,940 |  |  | $ | 59 |  |  | $ | (195,991 | ) |  | $ | 1,512,008 |
As of December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury |  | $ | 132,891 |  |  | $ | - |  |  | $ | (11,233 | ) |  | $ | 121,658 |
Federal agency |  |  | 248,419 |  |  |  | - |  |  |  | (42,000 | ) |  |  | 206,419 |
State & municipal |  |  | 97,036 |  |  |  | 5 |  |  |  | (14,190 | ) |  |  | 82,851 |
Mortgage-backed: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government-sponsored enterprises |  |  | 454,177 |  |  |  | 9 |  |  |  | (54,675 | ) |  |  | 399,511 |
U.S. government agency securities |  |  | 81,844 |  |  |  | 15 |  |  |  | (7,676 | ) |  |  | 74,183 |
Collateralized mortgage obligations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government-sponsored enterprises |  |  | 498,021 |  |  |  | 9 |  |  |  | (59,473 | ) |  |  | 438,557 |
U.S. government agency securities |  |  | 171,090 |  |  |  | - |  |  |  | (21,284 | ) |  |  | 149,806 |
Corporate |  |  | 60,404 |  |  |  | - |  |  |  | (6,164 | ) |  |  | 54,240 |
Total AFS securities |  | $ | 1,743,882 |  |  | $ | 38 |  |  | $ | (216,695 | ) |  | $ | 1,527,225 |
Amortized Cost, Estimated Fair Value and Unrealized Gains (Losses) of Held to Maturity ("HTM") Securities | The amortized cost, estimated fair value and unrealized gains (losses) of held to maturity (“HTM”) securities are as follows:
(In thousands) |  | Amortized Cost |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Estimated Fair Value |
As of March 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |
Federal agency |  | $ | 100,000 |  |  | $ | - |  |  | $ | (19,055 | ) |  | $ | 80,945 |
Mortgage-backed: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government-sponsored enterprises |  |  | 244,670 |  |  |  | - |  |  |  | (33,729 | ) |  |  | 210,941 |
U.S. government agency securities |  |  | 17,399 |  |  |  | 3 |  |  |  | (464 | ) |  |  | 16,938 |
Collateralized mortgage obligations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government-sponsored enterprises |  |  | 202,831 |  |  |  | 274 |  |  |  | (12,236 | ) |  |  | 190,869 |
U.S. government agency securities |  |  | 65,989 |  |  |  | - |  |  |  | (9,651 | ) |  |  | 56,338 |
State & municipal |  |  | 275,935 |  |  |  | 147 |  |  |  | (19,449 | ) |  |  | 256,633 |
Total HTM securities |  | $ | 906,824 |  |  | $ | 424 |  |  | $ | (94,584 | ) |  | $ | 812,664 |
As of December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal agency |  | $ | 100,000 |  |  | $ | - |  |  | $ | (20,678 | ) |  | $ | 79,322 |
Mortgage-backed: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government-sponsored enterprises |  |  | 249,511 |  |  |  | - |  |  |  | (36,819 | ) |  |  | 212,692 |
U.S. government agency securities |  |  | 18,396 |  |  |  | 4 |  |  |  | (619 | ) |  |  | 17,781 |
Collateralized mortgage obligations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government-sponsored enterprises |  |  | 207,738 |  |  |  | 200 |  |  |  | (14,876 | ) |  |  | 193,062 |
U.S. government agency securities |  |  | 66,628 |  |  |  | - |  |  |  | (9,842 | ) |  |  | 56,786 |
State & municipal |  |  | 277,244 |  |  |  | 5 |  |  |  | (24,245 | ) |  |  | 253,004 |
Total HTM securities |  | $ | 919,517 |  |  | $ | 209 |  |  | $ | (107,079 | ) |  | $ | 812,647 |
Gains and (Losses) on Equity Securities | The following table sets forth information with regard to gains and (losses) on equity securities:
|  | Three Months Ended March 31, |
(In thousands) |  | 2023 |  |  | 2022 |
Net gains and (losses) recognized on equity securities |  | $ | 2 |  |  | $ | (183 | )
Less: Net gains and (losses) recognized on equity securities sold during the period |  |  | - |  |  |  | - |
Unrealized gains and (losses) recognized on equity securities still held |  | $ | 2 |  |  | $ | (183 | )
Contractual Maturities of Debt Securities | The following table sets forth information with regard to contractual maturities of debt securities at March 31, 2023:
(In thousands) |  | Amortized Cost |  |  | Estimated Fair Value |
AFS debt securities: |  |  |  |  |  |
Within one year |  | $ | 360 |  |  | $ | 357 |
From one to five years |  |  | 406,527 |  |  |  | 370,571 |
From five to ten years |  |  | 566,555 |  |  |  | 495,942 |
After ten years |  |  | 734,498 |  |  |  | 645,138 |
Total AFS debt securities |  | $ | 1,707,940 |  |  | $ | 1,512,008 |
HTM debt securities: |  |  |  |  |  |  |  |
Within one year |  | $ | 51,124 |  |  | $ | 51,112 |
From one to five years |  |  | 100,684 |  |  |  | 98,539 |
From five to ten years |  |  | 270,074 |  |  |  | 237,794 |
After ten years |  |  | 484,942 |  |  |  | 425,219 |
Total HTM debt securities |  | $ | 906,824 |  |  | $ | 812,664 |
Investment Securities with Unrealized Losses | The following table sets forth information with regard to investment securities with unrealized losses, for which an allowance for credit losses has not been recorded, segregated according to the length of time the securities had been in a continuous unrealized loss position:
|  | Less Than 12 Months |  |  | 12 Months or Longer |  |  | Total |
(In thousands) |  | Fair Value |  |  | Unrealized Losses |  |  | Number of Positions |  |  | Fair Value |  |  | Unrealized Losses |  |  | Number of Positions |  |  | Fair Value |  |  | Unrealized Losses |  |  | Number of Positions |
As of March 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AFS securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury |  | $ | 9,818 |  |  | $ | (114 | ) |  |  | 1 |  |  | $ | 113,761 |  |  | $ | (9,185 | ) |  |  | 7 |  |  | $ | 123,579 |  |  | $ | (9,299 | ) |  |  | 8 |
Federal agency |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 210,220 |  |  |  | (38,190 | ) |  |  | 16 |  |  |  | 210,220 |  |  |  | (38,190 | ) |  |  | 16 |
State & municipal |  |  | 1,454 |  |  |  | (51 | ) |  |  | 1 |  |  |  | 82,792 |  |  |  | (11,774 | ) |  |  | 65 |  |  |  | 84,246 |  |  |  | (11,825 | ) |  |  | 66 |
Mortgage-backed |  |  | 22,278 |  |  |  | (736 | ) |  |  | 33 |  |  |  | 440,057 |  |  |  | (54,485 | ) |  |  | 134 |  |  |  | 462,335 |  |  |  | (55,221 | ) |  |  | 167 |
Collateralized mortgage obligations |  |  | 74,631 |  |  |  | (2,080 | ) |  |  | 23 |  |  |  | 504,718 |  |  |  | (71,199 | ) |  |  | 97 |  |  |  | 579,349 |  |  |  | (73,279 | ) |  |  | 120 |
Corporate |  |  | 13,677 |  |  |  | (737 | ) |  |  | 4 |  |  |  | 33,560 |  |  |  | (7,440 | ) |  |  | 13 |  |  |  | 47,237 |  |  |  | (8,177 | ) |  |  | 17 |
Total securities with unrealized losses |  | $ | 121,858 |  |  | $ | (3,718 | ) |  |  | 62 |  |  | $ | 1,385,108 |  |  | $ | (192,273 | ) |  |  | 332 |  |  | $ | 1,506,966 |  |  | $ | (195,991 | ) |  |  | 394 |
HTM securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal agency |  | $ | - |  |  | $ | - |  |  |  | - |  |  | $ | 80,945 |  |  | $ | (19,055 | ) |  |  | 4 |  |  | $ | 80,945 |  |  | $ | (19,055 | ) |  |  | 4 |
Mortgage-backed |  |  | 28,642 |  |  |  | (1,033 | ) |  |  | 7 |  |  |  | 199,125 |  |  |  | (33,160 | ) |  |  | 27 |  |  |  | 227,767 |  |  |  | (34,193 | ) |  |  | 34 |
Collateralized mortgage obligation |  |  | 87,826 |  |  |  | (3,168 | ) |  |  | 17 |  |  |  | 149,636 |  |  |  | (18,719 | ) |  |  | 37 |  |  |  | 237,462 |  |  |  | (21,887 | ) |  |  | 54 |
State & municipal |  |  | 52,808 |  |  |  | (561 | ) |  |  | 75 |  |  |  | 131,416 |  |  |  | (18,888 | ) |  |  | 134 |  |  |  | 184,224 |  |  |  | (19,449 | ) |  |  | 209 |
Total securities with unrealized losses |  | $ | 169,276 |  |  | $ | (4,762 | ) |  |  | 99 |  |  | $ | 561,122 |  |  | $ | (89,822 | ) |  |  | 202 |  |  | $ | 730,398 |  |  | $ | (94,584 | ) |  |  | 301 |
As of December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
AFS securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. treasury |  | $ | 55,616 |  |  | $ | (3,864 | ) |  |  | 5 |  |  | $ | 66,042 |  |  | $ | (7,369 | ) |  |  | 3 |  |  | $ | 121,658 |  |  | $ | (11,233 | ) |  |  | 8 |
Federal agency |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 206,419 |  |  |  | (42,000 | ) |  |  | 16 |  |  |  | 206,419 |  |  |  | (42,000 | ) |  |  | 16 |
State & municipal |  |  | 3,679 |  |  |  | (341 | ) |  |  | 2 |  |  |  | 78,395 |  |  |  | (13,849 | ) |  |  | 64 |  |  |  | 82,074 |  |  |  | (14,190 | ) |  |  | 66 |
Mortgage-backed |  |  | 204,447 |  |  |  | (15,048 | ) |  |  | 149 |  |  |  | 267,926 |  |  |  | (47,303 | ) |  |  | 32 |  |  |  | 472,373 |  |  |  | (62,351 | ) |  |  | 181 |
Collateralized mortgage obligations |  |  | 211,612 |  |  |  | (14,458 | ) |  |  | 77 |  |  |  | 374,376 |  |  |  | (66,299 | ) |  |  | 49 |  |  |  | 585,988 |  |  |  | (80,757 | ) |  |  | 126 |
Corporate |  |  | 34,434 |  |  |  | (2,970 | ) |  |  | 12 |  |  |  | 19,806 |  |  |  | (3,194 | ) |  |  | 6 |  |  |  | 54,240 |  |  |  | (6,164 | ) |  |  | 18 |
Total securities with unrealized losses |  | $ | 509,788 |  |  | $ | (36,681 | ) |  |  | 245 |  |  | $ | 1,012,964 |  |  | $ | (180,014 | ) |  |  | 170 |  |  | $ | 1,522,752 |  |  | $ | (216,695 | ) |  |  | 415 |
HTM securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal agency |  | $ | - |  |  | $ | - |  |  |  | - |  |  | $ | 79,322 |  |  | $ | (20,678 | ) |  |  | 4 |  |  | $ | 79,322 |  |  | $ | (20,678 | ) |  |  | 4 |
Mortgage-backed |  |  | 91,417 |  |  |  | (9,096 | ) |  |  | 21 |  |  |  | 138,936 |  |  |  | (28,342 | ) |  |  | 13 |  |  |  | 230,353 |  |  |  | (37,438 | ) |  |  | 34 |
Collateralized mortgage obligations |  |  | 191,644 |  |  |  | (13,863 | ) |  |  | 47 |  |  |  | 48,289 |  |  |  | (10,855 | ) |  |  | 8 |  |  |  | 239,933 |  |  |  | (24,718 | ) |  |  | 55 |
State & municipal |  |  | 110,727 |  |  |  | (4,930 | ) |  |  | 149 |  |  |  | 82,949 |  |  |  | (19,315 | ) |  |  | 76 |  |  |  | 193,676 |  |  |  | (24,245 | ) |  |  | 225 |
Total securities with unrealized losses |  | $ | 393,788 |  |  | $ | (27,889 | ) |  |  | 217 |  |  | $ | 349,496 |  |  | $ | (79,190 | ) |  |  | 101 |  |  | $ | 743,284 |  |  | $ | (107,079 | ) |  |  | 318 |

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- Definition Tabular disclosure of information about investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5B -URI https://asc.fasb.org/extlink&oid=126970911&loc=SL120269825-111563 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5A -URI https://asc.fasb.org/extlink&oid=126970911&loc=SL120269820-111563 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563 + Details
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