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Securities
 3 Months Ended
Mar. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
Securities Securities 
The amortized cost, unrealized gross gains and losses recognized in accumulated other comprehensive income (loss), and fair value of Securities Available-for-Sale were as follows:
Securities Available-for-Sale:Amortized
Cost		Gross
Unrealized
Gains		Gross
Unrealized
Losses		Allowance for Credit Losses Fair
Value
    
March 31, 2022    
Obligations of State and Political Subdivisions$951,417 $6,248 $(77,796)$— $879,869 
MBS/CMO890,290 451 (62,437)— 828,304 
US Gov’t Sponsored Entities & Agencies231,206 — (15,759)— 215,447 
Total$2,072,913 $6,699 $(155,992)$— $1,923,620 
December 31, 2021    
Obligations of State and Political Subdivisions$896,048 $31,138 $(1,480)$— $925,706 
MBS/CMO797,693 4,738 (10,481)— 791,950 
US Gov’t Sponsored Entities & Agencies175,457 192 (3,688)— 171,961 
Total$1,869,198 $36,068 $(15,649)$— $1,889,617 
 
All mortgage-backed securities in the above table (identified above and throughout this Note 4 as "MBS/CMO") are residential and multi-family mortgage-backed securities and guaranteed by government sponsored entities. The US Gov’t Sponsored Entities & Agencies in the above table have underlying collateral of equipment, machinery and commercial real estate.
The amortized cost and fair value of Securities at March 31, 2022 by contractual maturity are shown below. Expected maturities may differ from contractual maturities because some issuers have the right to call or prepay certain obligations with or without call or prepayment penalties. Mortgage-backed Securities are not due at a single maturity date and are shown separately.
Securities Available-for-Sale:Amortized
Cost		Fair
Value
Due in one year or less$3,473 $3,499 
Due after one year through five years20,399 20,755 
Due after five years through ten years76,417 77,310 
Due after ten years851,128 778,305 
MBS/CMO890,290 828,304 
US Gov’t Sponsored Entities & Agencies231,206 215,447 
Total$2,072,913 $1,923,620 
  
Proceeds from the Sales of Securities are summarized below:
 Three Months EndedThree Months Ended
March 31, 2022March 31, 2021
Proceeds from Sales$91,946 $51,370 
Gross Gains on Sales372 975 
Income Taxes on Gross Gains78 205 
The carrying value of securities pledged to secure repurchase agreements, public and trust deposits, and for other purposes as required by law was $288,083 and $222,896 as of March 31, 2022 and December 31, 2021, respectively.

Below is a summary of securities with unrealized losses as of March 31, 2022 and December 31, 2021, presented by length of time the securities have been in a continuous unrealized loss position:
 Less than 12 Months12 Months or MoreTotal
March 31, 2022Fair
Value		Unrealized
Loss		Fair
Value		Unrealized
Loss		Fair
Value		Unrealized
Loss
Obligations of State and Political Subdivisions$648,624 $(75,715)$11,405 $(2,081)$660,029 $(77,796)
MBS/CMO480,333 (30,102)285,351 (32,335)765,684 (62,437)
US Gov’t Sponsored Entities & Agencies208,572 (15,137)6,875 (622)215,447 (15,759)
Total$1,337,529 $(120,954)$303,631 $(35,038)$1,641,160 $(155,992)

 Less than 12 Months12 Months or MoreTotal
December 31, 2021Fair
Value		Unrealized
Loss		Fair
Value		Unrealized
Loss		Fair
Value		Unrealized
Loss
Obligations of State and Political Subdivisions$165,210 $(1,386)$1,500 $(94)$166,710 $(1,480)
MBS/CMO467,888 (9,100)36,827 (1,381)504,715 (10,481)
US Gov’t Sponsored Entities & Agencies126,103 (3,480)7,288 (208)133,391 (3,688)
Total$759,201 $(13,966)$45,615 $(1,683)$804,816 $(15,649)

Available-for-sale debt securities in unrealized loss positions are evaluated for impairment related to credit losses at least quarterly. For available-for-sale debt securities in an unrealized loss position, the Company assesses whether we intend to sell, or it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security’s amortized cost basis is reduced to fair value with an allowance. For available-for sale debt securities that do not meet the criteria, the Company evaluates whether the decline in fair
value has resulted from credit losses or other factors. In making this assessment, management considers the extent to which fair value is less than amortized cost, any changes to the rating of the security by a rating agency, and adverse conditions specifically related to the security and the issuer, among other factors. If this assessment indicates that a credit loss exists, we compare the present value of cash flows expected to be collected from the security with the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis for the security, a credit loss exists and an allowance for credit losses is recorded, limited to the amount that the fair value of the security is less than its amortized cost basis. Any impairment that has not been recorded through an allowance for credit losses is recognized in other comprehensive income, net of applicable taxes. No allowance for credit losses for available-for-sale debt securities was needed at March 31, 2022 or December 31, 2021. Accrued interest receivable on available-for-sale debt securities totaled $10,249 at March 31, 2022 and $8,990 at December 31, 2021. Accrued interest receivable is excluded from the estimate of credit losses.

The Company’s equity securities are listed as Other Investments on the Consolidated Balance Sheets and consist of one non-controlling investment in a single banking organization at March 31, 2022 and December 31, 2021. The original investment totaled $1,350 and other-than-temporary impairment was previously recorded totaling $997. The Company’s equity securities are considered not to have readily determinable fair value and are carried at cost and evaluated for impairment. At March 31, 2022, there was no additional impairment recognized through earnings.