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Securities | 3 Months Ended
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Mar. 31, 2022
Investments Debt And Equity Securities [Abstract] |
Securities | Securities: The following table summarizes the amortized cost and fair value of the available for sale investment securities portfolio at March 31, 2022 and December 31, 2021 and the corresponding amounts of unrealized gains and losses recognized in accumulated other comprehensive income:
|  |  |  |  | Gross |  |  | Gross |  |  |  |  |
| Amortized |  |  | Unrealized |  |  | Unrealized |  |  |  |  |
(In Thousands of Dollars) | Cost |  |  | Gains |  |  | Losses |  |  | Fair Value |
March 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and U.S. government sponsored entities | $ | 114,063 |  |  | $ | 3 |  |  | $ | (9,119 | ) |  | $ | 104,947 |
State and political subdivisions |  | 681,567 |  |  |  | 5,274 |  |  |  | (41,233 | ) |  |  | 645,608 |
Corporate bonds |  | 4,399 |  |  |  | 4 |  |  |  | (108 | ) |  |  | 4,295 |
Mortgage-backed securities - residential |  | 718,295 |  |  |  | 117 |  |  |  | (54,717 | ) |  |  | 663,695 |
Collateralized mortgage obligations - residential |  | 41,039 |  |  |  | 21 |  |  |  | (735 | ) |  |  | 40,325 |
Small Business Administration |  | 4,943 |  |  |  | 0 |  |  |  | (187 | ) |  |  | 4,756 |
Totals | $ | 1,564,306 |  |  | $ | 5,419 |  |  | $ | (106,099 | ) |  | $ | 1,463,626 |
|  |  |  |  | Gross |  |  | Gross |  |  |  |  |
| Amortized |  |  | Unrealized |  |  | Unrealized |  |  |  |  |
(In Thousands of Dollars) | Cost |  |  | Gains |  |  | Losses |  |  | Fair Value |
December 31, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and U.S. government sponsored entities | $ | 93,137 |  |  | $ | 32 |  |  | $ | (2,338 | ) |  | $ | 90,831 |
State and political subdivisions |  | 636,724 |  |  |  | 23,296 |  |  |  | (1,205 | ) |  |  | 658,815 |
Corporate bonds |  | 4,009 |  |  |  | 50 |  |  |  | (29 | ) |  |  | 4,030 |
Mortgage-backed securities - residential |  | 663,405 |  |  |  | 1,875 |  |  |  | (10,094 | ) |  |  | 655,186 |
Collateralized mortgage obligations - residential |  | 13,303 |  |  |  | 153 |  |  |  | (71 | ) |  |  | 13,385 |
Small Business Administration |  | 5,381 |  |  |  | 49 |  |  |  | 0 |  |  |  | 5,430 |
Totals | $ | 1,415,959 |  |  | $ | 25,455 |  |  | $ | (13,737 | ) |  | $ | 1,427,677 |
There were no sales of securities in the first quarter ended March 31, 2022. Proceeds from the sale of portfolio securities were $26.2 million during the three month period ended March 31, 2021. Gross gains of $406 thousand and gross losses of $23 thousand were realized on these sales during the three month period ended March 31, 2021. In addition, $11 thousand of realized losses and $105 thousand of realized gains on equity securities were recognized in the income statement during the three month periods ended March 31, 2022 and March 31, 2021, respectively. The amortized cost and fair value of the debt securities portfolio are shown in the table below by expected maturity. Expected maturities may differ from contractual maturities if issuers have the right to call or prepay obligations with or without call or prepayment penalties. Securities not due at a single maturity date are shown separately.
|  | March 31, 2022 |
(In Thousands of Dollars) |  | Amortized Cost |  |  | Fair Value |
Maturity |  |  |  |  |  |  |  |
Within one year |  | $ | 1,213 |  |  | $ | 1,215 |
One to five years |  |  | 14,507 |  |  |  | 14,683 |
Five to ten years |  |  | 152,628 |  |  |  | 143,677 |
Beyond ten years |  |  | 631,681 |  |  |  | 595,275 |
Mortgage-backed, collateralized mortgage obligations and Small Business Administration securities |  |  | 764,277 |  |  |  | 708,776 |
Total |  | $ | 1,564,306 |  |  | $ | 1,463,626 |
The following table summarizes the available for sale investment securities with unrealized losses at March 31, 2022 and December 31, 2021, aggregated by major security type and length of time in a continuous unrealized loss position.
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
(In Thousands of Dollars) |  | Value |  |  | Loss |  |  | Value |  |  | Loss |  |  | Value |  |  | Loss |
March 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and U.S. government sponsored entities |  | $ | 94,866 |  |  | $ | (8,125 | ) |  | $ | 9,753 |  |  | $ | (994 | ) |  | $ | 104,619 |  |  | $ | (9,119 | )
State and political subdivisions |  |  | 420,523 |  |  |  | (38,939 | ) |  |  | 14,420 |  |  |  | (2,294 | ) |  |  | 434,943 |  |  |  | (41,233 | )
Corporate bonds |  |  | 1,009 |  |  |  | (38 | ) |  |  | 670 |  |  |  | (70 | ) |  |  | 1,679 |  |  |  | (108 | )
Mortgage-backed securities - residential |  |  | 511,033 |  |  |  | (42,169 | ) |  |  | 110,117 |  |  |  | (12,548 | ) |  |  | 621,150 |  |  |  | (54,717 | )
Collateralized mortgage obligations - residential |  |  | 18,856 |  |  |  | (735 | ) |  |  | 0 |  |  |  | 0 |  |  |  | 18,856 |  |  |  | (735 | )
Small Business Administration |  |  | 4,756 |  |  |  | (187 | ) |  |  | 0 |  |  |  | 0 |  |  |  | 4,756 |  |  |  | (187 | )
Total temporarily impaired |  | $ | 1,051,043 |  |  | $ | (90,193 | ) |  | $ | 134,960 |  |  | $ | (15,906 | ) |  | $ | 1,186,003 |  |  | $ | (106,099 | )
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
(In Thousands of Dollars) |  | Value |  |  | Loss |  |  | Value |  |  | Loss |  |  | Value |  |  | Loss |
December 31, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury and U.S. government sponsored entities |  | $ | 81,236 |  |  | $ | (1,960 | ) |  | $ | 8,271 |  |  | $ | (378 | ) |  | $ | 89,507 |  |  | $ | (2,338 | )
State and political subdivisions |  |  | 103,651 |  |  |  | (1,020 | ) |  |  | 10,020 |  |  |  | (185 | ) |  |  | 113,671 |  |  |  | (1,205 | )
Corporate bonds |  |  | 418 |  |  |  | (2 | ) |  |  | 715 |  |  |  | (27 | ) |  |  | 1,133 |  |  |  | (29 | )
Mortgage-backed securities - residential |  |  | 525,792 |  |  |  | (7,872 | ) |  |  | 55,569 |  |  |  | (2,222 | ) |  |  | 581,361 |  |  |  | (10,094 | )
Collateralized mortgage obligations - residential |  |  | 7,270 |  |  |  | (71 | ) |  |  | 0 |  |  |  | 0 |  |  |  | 7,270 |  |  |  | (71 | )
Total temporarily impaired |  | $ | 718,367 |  |  | $ | (10,925 | ) |  | $ | 74,575 |  |  | $ | (2,812 | ) |  | $ | 792,942 |  |  | $ | (13,737 | )
Allowance for Credit Losses The Company adopted ASU 2016-13 prior to 2021, which made improvements to the accounting for credit losses on securities available for sale. During the evaluation process, management considers the extent to which the fair value has been less than cost, the financial condition and near term prospects of the issuer, and the intent and ability of the Company to hold the security for a period of time sufficient to allow for any anticipated recovery in fair value. If the Company determines that a credit loss exists, the credit portion of the allowance will be measured using a discounted cash flow analysis using the effective interest rate as of the security’s purchase date. As of March 31, 2022, the Company’s security portfolio consisted of 879 securities, 595 of which were in an unrealized loss position. The majority of the unrealized losses on the Company’s securities are related to its holdings of mortgage-backed securities and state and political subdivisions. The Company does not consider its AFS securities with unrealized losses to be attributable to credit-related factors, as the unrealized losses have occurred as a result of changes in noncredit related factors such as changes in interest rates, market spreads and market conditions subsequent to purchase, not credit deterioration. As of March 31, 2022 the Company has not recorded an allowance for credit losses on AFS securities.

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2176304 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph (b) + Details
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