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Retirement Benefits (Tables)
 12 Months Ended
Dec. 31, 2021
Retirement Benefits [Abstract]  
Funded Status and Components of Postretirement Benefit Costs The following tables set forth the funded status and components of postretirement benefit costs at December 31 measurement dates (in thousands):
 202120202019
Accumulated postretirement benefit obligation beginning of year$1,133 $1,241 $1,359 
Service cost— — 9 
Interest cost22 33 52 
Actuarial gain(77)(44)(76)
Benefits paid(99)(97)(103)
Accumulated postretirement benefit obligation end of year979 1,133 1,241 
Accrued liability (included in accrued expenses and other liabilities)$979 $1,133 $1,241 
Amounts Recognized In Accumulated Other Comprehensive Income (Loss)
The following table sets forth the amounts recognized in accumulated other comprehensive income (loss) (in thousands): 
 December 31,
 20212020
Net loss$11 $87 
Prior service credit(152)(171)
Loss recognized in accumulated other comprehensive income (loss)$(141)$(84)
Components Of Net Periodic Postretirement Benefit Cost
The following table sets forth the components of net periodic postretirement benefit costs for the years ended December 31, 2021, 2020, and 2019 (in thousands): 
 December 31,
 202120202019
Service cost$— $— $9 
Interest cost22 33 52 
Amortization of prior service credits(20)(20)— 
Amortization of unrecognized loss— 1 2 
Net postretirement benefit cost included in compensation and employee benefits$2 $14 $63 
Assumptions Used In Accounting For The Plan
The Company’s discount rate and rate of compensation increase used in accounting for the plan are as follows: 
 202120202019
Assumptions used to determine benefit obligation at period end:   
Discount rate2.50 %2.00 %2.75 %
Rate of increase in compensation(1)
N/AN/A4.00 %
Assumptions used to determine net periodic benefit cost for the year:   
Discount rate2.00 %2.75 %4.00 %
Rate of increase in compensation(1)
N/AN/A4.00 %
 (1) For 2021 and 2020, since the covered population is only retirees, a compensation rate increase assumption was not used.
Schedule of Defined Benefit Plans Disclosures
A one percentage-point change in assumed healthcare cost trends would have the following effects (in thousands): 
 One Percentage Point IncreaseOne Percentage Point Decrease
 2021202020212020
Effect on benefits earned and interest cost$2 $3 $(2)$(2)
Effect on accumulated postretirement benefit obligation78 97 (68)(84)
 
A one percentage-point change in assumed healthcare cost trends would have the following effects (in thousands):
 One Percentage Point IncreaseOne Percentage Point Decrease
 202120202019202120202019
Aggregate of service and interest
components of net periodic cost (benefit)		$2 $3 $4 $(2)$(2)$(4)