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Benefit Plan (Tables)
9 Months Ended
Sep. 30, 2022
Retirement Benefits [Abstract]  
Components Of Net Periodic Benefit Expense
The following table shows the components of net periodic pension benefit (income) expense:

Three Months Ended
September 30,
Nine Months Ended
September 30,
Affected Line Item in the Consolidated
Condensed Statements of Income
(In thousands)2022202120222021
Service cost$2,437 $2,479 $7,311 $7,437 Employee benefits
Interest cost1,426 1,340 4,278 4,020 Other components of net
periodic pension benefit income
Expected return on plan assets(4,449)(3,933)(13,347)(11,799)Other components of net
periodic pension benefit income
Recognized net actuarial (gain) loss and prior service costs(4)555 (12)1,665 Other components of net
periodic pension benefit income
Net periodic pension benefit (income) expense$(590)$441 $(1,770)$1,323 

Park has entered into Supplemental Executive Retirement Plan Agreements (the “SERP Agreements”) with certain key officers of Park and its subsidiaries which provide defined pension benefits in excess of limits imposed by federal tax law. The expense
for the Corporation related to the SERP Agreements for the three months and the nine months ended September 30, 2022 and 2021 was as follows:

Three Months Ended
September 30,
Nine Months Ended
September 30,
Affected Line Item in the Consolidated
Condensed Statements of Income
(In thousands)2022202120222021
Service cost$212 $203 637 $611 Employee benefits
Interest cost183 150 549 448 Miscellaneous expense
Total SERP expense$395 $353 $1,186 $1,059