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v3.22.2.2

SECURITIES (Tables) | 9 Months Ended
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Sep. 30, 2022
SECURITIES [Abstract] |
Major Categories of Securities Owned by Entity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, 2022
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair
(In thousands) |  | Cost |  | Gains |  | Losses |  | Value
Securities available-for-sale: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Treasury securities | ​ | $ | 247,157 | ​ | $ | — | ​ | $ | (21,232) | ​ | $ | 225,925
Corporate securities | ​ |  | 174,344 | ​ |  | — | ​ |  | (17,312) | ​ |  | 157,032
Pass-through mortgage-backed securities ("MBS") issued by government sponsored entities ("GSEs") | ​ |  | 287,157 | ​ |  | — | ​ |  | (34,502) | ​ |  | 252,655
Agency collateralized mortgage obligations ("CMOs") | ​ |  | 342,734 | ​ |  | 2 | ​ |  | (49,019) | ​ |  | 293,717
State and municipal obligations | ​ | ​ | 37,157 | ​ | ​ | — | ​ | ​ | (3,559) | ​ | ​ | 33,598
Total securities available-for-sale | ​ | $ | 1,088,549 | ​ | $ | 2 | ​ | $ | (125,624) | ​ | $ | 962,927
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, 2022
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​
​ | ​ | Amortized | ​ | Unrecognized | ​ | Unrecognized | ​ | Fair
(In thousands) |  | Cost |  | Gains |  | Losses |  | Value
Securities held-to-maturity: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Agency notes | ​ | $ | 89,057 | ​ | $ | — | ​ | $ | (14,168) | ​ | $ | 74,889
Corporate securities | ​ | ​ | 9,000 | ​ | ​ | — | ​ | ​ | (287) | ​ | ​ | 8,713
Pass-through MBS issued by GSEs | ​ | ​ | 281,739 | ​ | ​ | — | ​ | ​ | (43,405) | ​ | ​ | 238,334
Agency CMOs | ​ |  | 211,607 | ​ |  | — | ​ |  | (22,489) | ​ |  | 189,118
Total securities held-to-maturity | ​ | $ | 591,403 | ​ | $ | — | ​ | $ | (80,349) | ​ | $ | 511,054
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2021
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​
​ | ​ | Amortized | ​ | Unrealized | ​ | Unrealized | ​ | Fair
(In thousands) |  | Cost |  | Gains |  | Losses |  | Value
Securities available-for-sale: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Agency notes | ​ | $ | 82,476 | ​ | $ | — | ​ | $ | (2,222) | ​ | $ | 80,254
Treasury securities | ​ | ​ | 247,916 | ​ | ​ | — | ​ | ​ | (3,147) | ​ | ​ | 244,769
Corporate securities | ​ |  | 148,430 | ​ |  | 4,354 | ​ |  | (754) | ​ |  | 152,030
Pass-through MBS issued by GSEs | ​ |  | 528,749 | ​ |  | 4,271 | ​ |  | (6,566) | ​ |  | 526,454
Agency CMOs | ​ |  | 527,348 | ​ |  | 2,705 | ​ |  | (8,795) | ​ |  | 521,258
State and municipal obligations | ​ | ​ | 39,175 | ​ | ​ | 73 | ​ | ​ | (302) | ​ | ​ | 38,946
Total securities available-for-sale | ​ | $ | 1,574,094 | ​ | $ | 11,403 | ​ | $ | (21,786) | ​ | $ | 1,563,711
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2021
​ | ​ | ​ | ​ | ​ | Gross | ​ | Gross | ​ | ​ | ​
​ | ​ | Amortized | ​ | Unrecognized | ​ | Unrecognized | ​ | Fair
(In thousands) |  | Cost |  | Gains |  | Losses |  | Value
Securities held-to-maturity: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Pass-through MBS issued by GSEs | ​ | $ | 118,382 | ​ | $ | 59 | ​ | $ | (1,141) | ​ | $ | 117,300
Agency CMOs | ​ |  | 60,927 | ​ |  | — | ​ |  | (873) | ​ |  | 60,054
Total securities held-to-maturity | ​ | $ | 179,309 | ​ | $ | 59 | ​ | $ | (2,014) | ​ | $ | 177,354
Schedule of amortized cost and fair value of debt securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ |
​ | ​ | September 30, 2022
​ | ​ | Amortized | ​ | Fair
(In thousands) | ​ | Cost | ​ | Value
Available-for-sale | ​ | ​ | ​ | ​ | ​ | ​
Within one year | ​ | $ | 4,328 | ​ | $ | 4,260
One to five years | ​ | ​ | 279,979 | ​ | ​ | 256,086
Five to ten years | ​ | ​ | 169,206 | ​ | ​ | 151,713
Beyond ten years | ​ | ​ | 5,145 | ​ | ​ | 4,496
Pass-through MBS issued by GSEs and agency CMO | ​ | ​ | 629,891 | ​ | ​ | 546,372
Total | ​ | $ | 1,088,549 | ​ | $ | 962,927
​ | ​ | ​ | ​ | ​ | ​ | ​
Held-to-maturity | ​ | ​ | ​ | ​ | ​ | ​
Within one year | ​ | $ | — | ​ | $ | —
One to five years | ​ | ​ | 10,000 | ​ | ​ | 9,301
Five to ten years | ​ | ​ | 88,057 | ​ | ​ | 74,301
Beyond ten years | ​ | ​ | — | ​ | ​ | —
Pass-through MBS issued by GSEs and agency CMO | ​ | ​ | 493,346 | ​ | ​ | 427,452
Total | ​ | $ | 591,403 | ​ | $ | 511,054
Summary of Sale of Available-for-sale Securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
(In thousands) |  | 2022 |  | 2021 | ​ | 2022 |  | 2021
Securities available-for-sale | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Proceeds | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 138,077
Gross gains | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 1,327
Tax expense on gains | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 421
Gross losses | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 120
Tax benefit on losses | ​ | ​ | — | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 38
Sales of Marketable Equity Securities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Nine Months Ended
​ | ​ | September 30, | ​ | September 30,
(In thousands) |  | 2022 |  | 2021 | ​ | 2022 |  | 2021
Proceeds: |  | ​ |  |  | ​ |  | ​ | ​ |  |  | ​ |
Marketable equity securities | ​ | $ | — | ​ | $ | — | ​ | $ | — | ​ | $ | 6,101
Gross Unrealized Losses and Fair Value of Investment Securities by Investment Category and Length of Time in a Continuous Unrealized Loss Position | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, 2022
​ | ​ | Less than 12 | ​ | 12 Consecutive | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Consecutive Months | ​ | Months or Longer | ​ | Total
​ | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized
(In thousands) |  | Value |  | Losses |  | Value |  | Losses |  | Value |  | Losses
Securities available-for-sale: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Treasury securities | ​ | $ | — | ​ | $ | — | ​ | $ | 225,925 | ​ | $ | 21,232 | ​ | $ | 225,925 | ​ | $ | 21,232
Corporate securities | ​ | ​ | 135,613 | ​ | ​ | 13,125 | ​ | ​ | 21,419 | ​ | ​ | 4,187 | ​ | ​ | 157,032 | ​ | ​ | 17,312
Pass-through MBS issued by GSEs | ​ | ​ | 69,094 | ​ | ​ | 4,440 | ​ | ​ | 183,561 | ​ | ​ | 30,062 | ​ | ​ | 252,655 | ​ | ​ | 34,502
Agency CMOs | ​ | ​ | 80,929 | ​ | ​ | 5,456 | ​ | ​ | 207,788 | ​ | ​ | 43,563 | ​ | ​ | 288,717 | ​ | ​ | 49,019
State and municipal obligations | ​ |  | 18,428 | ​ |  | 1,498 | ​ |  | 15,170 | ​ |  | 2,061 | ​ | ​ | 33,598 | ​ | ​ | 3,559
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2021
​ | ​ | Less than 12 | ​ | 12 Consecutive | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Consecutive Months | ​ | Months or Longer | ​ | Total
​ | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized | ​ | Fair | ​ | Unrealized
(In thousands) |  | Value |  | Losses |  | Value |  | Losses |  | Value |  | Losses
Securities available-for-sale: |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Agency notes | ​ | $ | 58,607 | ​ | $ | 1,369 | ​ | $ | 21,647 | ​ | $ | 853 | ​ | $ | 80,254 | ​ | $ | 2,222
Treasury securities | ​ | ​ | 244,769 | ​ | ​ | 3,147 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 244,769 | ​ | ​ | 3,147
Corporate securities | ​ | ​ | 37,620 | ​ | ​ | 754 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 37,620 | ​ | ​ | 754
Pass-through MBS issued by GSEs | ​ | ​ | 422,634 | ​ | ​ | 6,333 | ​ | ​ | 4,748 | ​ | ​ | 233 | ​ | ​ | 427,382 | ​ | ​ | 6,566
Agency CMOs | ​ | ​ | 349,879 | ​ | ​ | 8,672 | ​ | ​ | 3,182 | ​ | ​ | 123 | ​ | ​ | 353,061 | ​ | ​ | 8,795
State and municipal obligations | ​ |  | 18,887 | ​ |  | 302 | ​ |  | — | ​ |  | — | ​ | ​ | 18,887 | ​ | ​ | 302

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