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Pension Plans and Postretirement Benefit Plan
 3 Months Ended
Mar. 31, 2020
Retirement Benefits [Abstract]  
Pension Plans and Postretirement Benefit Plan Pension Plans and Postretirement Benefit Plan
Components of net periodic benefit cost for the Company’s pension plans and the postretirement benefit plan are presented in the following table for the three months ended March 31, 2020, and March 31, 2019.
 
Pension Benefits
 
Postretirement Benefits
(dollars in thousands)
2020

 
2019

 
2020

 
2019

Three Months Ended March 31,
 

 
 

 
 

 
 

Service Cost
$
—

 
$
—

 
$
151

 
$
118

Interest Cost
900

 
1,094

 
231

 
258

Expected Return on Plan Assets
(1,258
)
 
(1,249
)
 
—

 
—

Amortization of:
 

 
 

 
 

 
 

Prior Service Credit
—

 
—

 
(61
)
 
(72
)
Net Actuarial Losses (Gains)
570

 
484

 
—

 
(78
)
Net Periodic Benefit Cost
$
212

 
$
329

 
$
321

 
$
226



The service cost component of net periodic benefit cost are included in salaries and benefits and all other components of net periodic benefit cost are included in other noninterest expense in the consolidated statements of income for the Company’s pension plans and postretirement benefit plan. For the three months ended March 31, 2020, the Company contributed $0.1 million to the pension plans and $0.3 million to the postretirement benefit plan.  The Company expects to contribute a total of $0.4 million to the pension plans and $1.0 million to the postretirement benefit plan for the year ending December 31, 2020.