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SECURITIES: (Tables) | 12 Months Ended
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Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract] |
Debt Securities, Available-for-sale | The fair value of securities available-for-sale and related gross unrealized gains and losses recognized in accumulated other comprehensive income were as follows:
|  | December 31, 2021
|  | Amortized |  | Unrealized |  |
(Dollar amounts in thousands) |  | Cost |  | Gains |  | Losses |  | Fair Value
U.S. Government entity mortgage-backed securities |  | $ | 118,176 |  |  | $ | 2,688 |  |  | $ | (741) |  |  | $ | 120,123 |
Mortgage-backed securities, residential |  | 628,920 |  |  | 4,387 |  |  | (6,879) |  |  | 626,428 |
Mortgage-backed securities, commercial |  | 15,480 |  |  | 191 |  |  | — |  |  | 15,671 |
Collateralized mortgage obligations |  | 175,501 |  |  | 1,272 |  |  | (1,768) |  |  | 175,005 |
State and municipal obligations |  | 362,843 |  |  | 17,833 |  |  | (578) |  |  | 380,098 |
Municipal taxable |  | 38,445 |  |  | 396 |  |  | (215) |  |  | 38,626 |
U.S. Treasury |  | 205 |  |  | — |  |  | (1) |  |  | 204 |
Collateralized debt obligations |  | — |  |  | 3,359 |  |  | — |  |  | 3,359 |
Other securities |  | 5,220 |  |  | — |  |  | — |  |  | 5,220 |
TOTAL |  | $ | 1,344,790 |  |  | $ | 30,126 |  |  | $ | (10,182) |  |  | $ | 1,364,734 |
|  | December 31, 2020
|  | Amortized |  | Unrealized |  |
(Dollar amounts in thousands) |  | Cost |  | Gains |  | Losses |  | Fair Value
U.S. Government entity mortgage-backed securities |  | $ | 92,710 |  |  | $ | 5,105 |  |  | $ | (1) |  |  | $ | 97,814 |
Mortgage-backed securities, residential |  | 346,606 |  |  | 8,794 |  |  | (279) |  |  | 355,121 |
Mortgage-backed securities, commercial |  | 17,931 |  |  | 559 |  |  | — |  |  | 18,490 |
Collateralized mortgage obligations |  | 209,556 |  |  | 4,761 |  |  | (157) |  |  | 214,160 |
State and municipal obligations |  | 285,837 |  |  | 20,294 |  |  | — |  |  | 306,131 |
Municipal taxable |  | 22,440 |  |  | 702 |  |  | (3) |  |  | 23,139 |
U.S. Treasury |  | 2,750 |  |  | 3 |  |  | — |  |  | 2,753 |
Collateralized debt obligations |  | — |  |  | 3,136 |  |  | — |  |  | 3,136 |
TOTAL |  | $ | 977,830 |  |  | $ | 43,354 |  |  | $ | (440) |  |  | $ | 1,020,744 |
Schedule Of Gross Gain Or Loss realised | Below is a summary of the gross gains and losses realized by the Corporation on investment sales and calls during the years ended December 31, 2021, 2020 and 2019, respectively.
(Dollar amounts in thousands) |  | 2021 |  | 2020 |  | 2019
Proceeds |  | $ | 12,886 |  |  | $ | 36,696 |  |  | $ | 11,210 |
Gross gains |  | 274 |  |  | 290 |  |  | 55 |
Gross losses |  | (160) |  |  | (57) |  |  | (11) |
Schedule of contractual maturities of debt securities | Contractual maturities of debt securities at year-end 2021 were as follows. Securities not due at a single maturity or with no maturity date, primarily mortgage-backed and collateralized mortgage obligations, are shown separately.
|  | Available-for-Sale
|  | Amortized |  | Fair
(Dollar amounts in thousands) |  | Cost |  | Value
Due in one year or less |  | $ | 16,769 |  |  | $ | 16,956 |
Due after one but within five years |  | 47,479 |  |  | 48,391 |
Due after five but within ten years |  | 83,680 |  |  | 87,192 |
Due after ten years |  | 376,961 |  |  | 395,091 |
|  | 524,889 |  |  | 547,630 |
Mortgage-backed securities and collateralized mortgage obligations |  | 819,901 |  |  | 817,104 |
TOTAL |  | $ | 1,344,790 |  |  | $ | 1,364,734 |
Schedule of gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in continuous unrealized loss position | The following tables show the securities' gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in continuous unrealized loss position, at December 31, 2021 and 2020.
|  | December 31, 2021
|  | Less Than 12 Months |  | More Than 12 Months |  | Total
|  |  |  | Unrealized |  |  |  | Unrealized |  |  |  | Unrealized
(Dollar amounts in thousands) |  | Fair Value |  | Losses |  | Fair Value |  | Losses |  | Fair Value |  | Losses
U.S. Government entity mortgage-backed securities |  | $ | 48,939 |  |  | $ | (739) |  |  | 146 |  |  | (2) |  |  | $ | 49,085 |  |  | $ | (741) |
Mortgage-backed securities, residential |  | 436,726 |  |  | (5,281) |  |  | 60,807 |  |  | (1,598) |  |  | 497,533 |  |  | (6,879) |
Collateralized mortgage obligations |  | 73,530 |  |  | (1,327) |  |  | 12,505 |  |  | (441) |  |  | 86,035 |  |  | (1,768) |
State and municipal obligations |  | 54,040 |  |  | (578) |  |  | — |  |  | — |  |  | 54,040 |  |  | (578) |
Municipal taxable |  | 15,048 |  |  | (195) |  |  | 729 |  |  | (20) |  |  | 15,777 |  |  | (215) |
U.S. Treasury |  | 204 |  |  | (1) |  |  | — |  |  | — |  |  | 204 |  |  | (1) |
Total temporarily impaired securities |  | $ | 628,487 |  |  | $ | (8,121) |  |  | $ | 74,187 |  |  | $ | (2,061) |  |  | $ | 702,674 |  |  | $ | (10,182) |
|  | December 31, 2020
|  | Less Than 12 Months |  | More Than 12 Months |  | Total
|  |  |  | Unrealized |  |  |  | Unrealized |  |  |  | Unrealized
(Dollar amounts in thousands) |  | Fair Value |  | Losses |  | Fair Value |  | Losses |  | Fair Value |  | Losses
U.S. Government entity mortgage-backed securities |  | $ | — |  |  | $ | — |  |  | $ | 944 |  |  | $ | (1) |  |  | $ | 944 |  |  | $ | (1) |
Mortgage-backed securities, residential |  | 76,962 |  |  | (279) |  |  | — |  |  | — |  |  | 76,962 |  |  | (279) |
Collateralized mortgage obligations |  | 12,282 |  |  | (108) |  |  | 3,767 |  |  | (49) |  |  | 16,049 |  |  | (157) |
Municipal taxable |  | 747 |  |  | (3) |  |  | — |  |  | — |  |  | 747 |  |  | (3) |
U.S. Treasury |  | 250 |  |  | — |  |  | — |  |  | — |  |  | 250 |  |  | — |
Total temporarily impaired securities |  | $ | 90,241 |  |  | $ | (390) |  |  | $ | 4,711 |  |  | $ | (50) |  |  | $ | 94,952 |  |  | $ | (440) |
Rollforward of the credit losses recognized in earnings | The table below presents a rollforward of the credit losses recognized in earnings for the years presented:
(Dollar amounts in thousands) |  | 2021 |  | 2020 |  | 2019
Beginning balance, January 1, |  | $ | 2,974 |  |  | $ | 2,974 |  |  | $ | 2,974 |
Reductions for securities called during the period |  | — |  |  | — |  |  | — |
Ending balance, December 31, |  | $ | 2,974 |  |  | $ | 2,974 |  |  | $ | 2,974 |

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- Definition Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 + Details
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- Definition Tabular disclosure of the amount of other than temporary impairment (OTTI) related to credit losses recognized in earnings including: (a) the beginning balance of the amount related to credit losses on debt securities held by the investor at the beginning of the period for which a portion of an OTTI was recognized in other comprehensive income; (b) additions for the amount related to the credit loss for which an OTTI was not previously recognized; (c) reductions for securities sold during the period (realized); (d) reductions for securities for which the amount previously recognized in other comprehensive income was recognized in earnings because the investor intends to sell the security or more likely than not will be required to sell the security before recovery of its amortized cost basis; (e) additional increases to the amount related to the credit loss for which an OTTI was previously recognized when the investor does not intend to sell the security and it is not more likely than not that the investor will be required to sell the security before recovery of its amortized cost basis; (f) reductions for increases in cash flows expected to be collected that are recognized over the remaining life of the security; and (g) the ending balance of the amount related to credit losses on debt securities held by the entity at the end of the period for which a portion of an OTTI was recognized in other comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27340-111563 + Details
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- Definition Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27357-111563 + Details
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- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27290-111563 + Details
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