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Components of Pension Plan Net Periodic Benefit Cost
 6 Months Ended
Jun. 30, 2018
Retirement Benefits [Abstract]  
Components of Pension Plan Net Periodic Benefit Cost
COMPONENTS OF PENSION PLAN NET PERIODIC BENEFIT COST:

Components of Net Periodic Benefit Cost are as follows:
 
For the Three Months Ended June 30,
 
For the Six Months Ended June 30,
 
2018
 
2017
 
2018
 
2017
Service Cost
$
96

 
$
149

 
$
193

 
$
193

Interest Cost
300

 
476

 
600

 
619

Amortization of Prior Service Credits
(90
)
 
(143
)
 
(181
)
 
(186
)
Recognized Net Actuarial Loss
373

 
604

 
746

 
786

Curtailment Gain
(416
)
 
—

 
(416
)
 
—

Net Periodic Benefit Cost
$
263

 
$
1,086

 
$
942

 
$
1,412



During June 2018, a plan amendment was announced that freezes the benefits for the Defined Contribution Restoration Plan effective July 1, 2018. Employees hired after this date will not be eligible for this benefit plan. In addition, current participants will receive no further compensation credits after that date, with the last award year being 2017. Annual interest credits will continue to be made in accordance with the terms of the plan. This amendment triggered a curtailment gain of $416. The curtailment resulted in a plan remeasurement, decreasing the plan liabilities by $2,235 at June 30, 2018.