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Pension and Other Post Retirement Benefit Plans (Tables)
 12 Months Ended
Dec. 31, 2021
Retirement Benefits [Abstract]  
Schedule of Plans' Funded Status and Amounts Recognized in the Balance Sheets
The table below sets forth the plans’ funded status and amounts recognized in the consolidated balance sheets at December 31, using measurement dates of December 31, 2021 and 2020.
20212020
Change in Benefit Obligation:  
Benefit obligation at beginning of year$80,786 $76,770 
Service cost— 16 
Interest cost1,760 2,343 
Actuarial (gain) loss(2,919)6,957 
Benefits paid(5,353)(5,300)
Benefit obligation at end of year$74,274 $80,786 
Change in Plan Assets:  
Fair value of plan assets at beginning of year$88,512 $85,121 
Actual return on plan assets10,786 7,925 
Employer contributions643 766 
Benefits paid(5,353)(5,300)
End of year94,588 88,512 
Funded status at end of year$20,314 $7,726 
Assets and Liabilities Recognized in the Balance Sheets:  
Deferred tax asset$1,545 $3,970 
Assets$24,750 $12,681 
Liabilities$4,436 $4,955 
Schedule of Accumulated Benefit Obligation in Excess of Plan Assets
Information for pension plans with an accumulated benefit obligation in excess of plan assets consists solely of the non-qualified plans for certain employees, former employees and former non-employee directors, and is included in the table below.
December 31, 2021December 31, 2020
Projected benefit obligation$4,436 $4,955 
Accumulated benefit obligation$4,436 $4,955 
Fair value of plan assets$— $— 
Schedule of Net Periodic Pension Costs
The following table shows the components of net periodic pension benefit cost:
December 31, 2021December 31, 2020December 31, 2019
Service cost$— $16 $39 
Interest cost1,760 2,343 2,975 
Expected return on plan assets(4,246)(4,086)(4,414)
Amortization of prior service cost87 87 87 
Amortization of net loss305 221 404 
Net periodic pension benefit cost$(2,094)$(1,419)$(909)
Schedule of Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss)
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
December 31, 2021December 31, 2020December 31, 2019
Net periodic pension benefit cost$(2,094)$(1,419)$(909)
Net gain (loss)9,460 (3,119)4,552 
Amortization of net loss305 221 404 
Amortization of prior service cost87 87 87 
Total recognized in other comprehensive income (loss)9,852 (2,811)5,043 
Total recognized in net periodic pension benefit cost and other comprehensive income (loss)$11,946 $(1,392)$5,952 
Schedule of Assumptions Used Significant assumptions include:
December 31, 2021December 31, 2020December 31, 2019
Weighted-average Assumptions Used to Determine Benefit Obligation:  
Discount rate2.70 %2.30 %3.20 %
Rate of compensation increase for accruing active participantsn/an/an/a
Weighted-average Assumptions Used to Determine Cost: 
Discount rate2.30 %3.20 %4.30 %
Expected return on plan assets5.00 %5.00 %6.00 %
Rate of compensation increase for accruing active participantsn/an/an/a
Schedule of Expected Benefit Payments
The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid as of December 31, 2021. The minimum contribution required in 2022 will likely be zero, but the Corporation may decide to make a discretionary contribution during the year.
2022$5,720 
20235,607 
20245,366 
20255,340 
20265,265 
After 202622,379 
 $49,677 
Schedule of Allocation of Plan Assets
Plan assets are re-balanced quarterly. At December 31, 2021 and 2020, plan assets by category are as follows:
 December 31, 2021December 31, 2020
 ActualTargetActualTarget
Cash and cash equivalents2.5 %3.0 %2.7 %3.0 %
Equity securities56.4 53.0 53.0 50.0 
Debt securities38.6 42.0 42.3 45.0 
Alternative investments2.5 2.0 2.0 2.0 
 100.0 %100.0 %100.0 %100.0 %
Following is a description of the valuation methodologies used for pension plan assets measured at fair value on a recurring basis, as well as the general classification of pension plan assets pursuant to the valuation hierarchy.

Where quoted market prices are available in an active market, plan assets are classified within Level 1 of the valuation hierarchy.  Level 1 plan assets total $92.0 million and $85.0 million as of December 31, 2021 and 2020, respectively, and include cash and cash equivalents, common stocks, mutual funds and corporate bonds and notes.  If quoted market prices are not available, then fair values are estimated by using pricing models, quoted prices of plan assets with similar characteristics or discounted cash flows.  Level 2 plan assets total $2.6 million and $3.5 million as of December 31, 2021 and 2020, respectively, and include governmental agencies, taxable municipal bonds and notes, and certificates of deposit.  In certain cases where Level 1 or Level 2 inputs are not available, plan assets are classified within Level 3 of the hierarchy.  There are no assets classified within Level 3 of the hierarchy at December 31, 2021 and 2020.
  Fair Value Measurements Using
  Quoted Prices in
Active Markets for
Identical Assets		Significant Other Observable InputsSignificant
Unobservable
Inputs
December 31, 2021Fair Value(Level 1)(Level 2)(Level 3)
Cash & Cash Equivalents$2,346 $2,346 $— $— 
Corporate Bonds and Notes15,726 15,726 — — 
Government Agency and Municipal Bonds and Notes1,302 — 1,302 — 
Certificates of Deposit1,307 — 1,307 — 
Party-in-Interest Investments
Common Stock2,534 2,534 — — 
Mutual Funds
Taxable Bond18,184 18,184 — — 
Large Cap Equity28,349 28,349 — — 
Mid Cap Equity13,033 13,033 — — 
Small Cap Equity5,815 5,815 — — 
International Equity3,602 3,602 — — 
Specialty Alternative Equity2,390 2,390 — — 
$94,588 $91,979 $2,609 $— 


  Fair Value Measurements Using
  Quoted Prices in
Active Markets for
Identical Assets		Significant Other Observable InputsSignificant
Unobservable
Inputs
December 31, 2020Fair Value(Level 1)(Level 2)(Level 3)
Cash & Cash Equivalents$2,361 $2,361 $— $— 
Corporate Bonds and Notes16,330 16,330 — — 
Government Agency and Municipal Bonds and Notes2,462 — 2,462 — 
Certificates of Deposit1,043 — 1,043 — 
Party-in-Interest Investments
Common Stock2,263 2,263 — — 
Mutual Funds
Taxable Bond17,676 17,676 — — 
Large Cap Equity25,117 25,117 — — 
Mid Cap Equity10,731 10,731 — — 
Small Cap Equity4,867 4,867 — — 
International Equity3,912 3,912 — — 
Specialty Alternative Equity1,750 1,750 — — 
$88,512 $85,007 $3,505 $—