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Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2019

Pension Costs

Defined Benefit Plan Disclosure [Line Items]

Schedule Of Benefit Plans

The components of our consolidated net pension costs are set forth in the following table:

	For the Three Months Ended September 30,								For the Nine Months Ended September 30,
	2019				2018				2019				2018
	(Dollars in thousands)
Service cost	$	574			$	498			$	1,724			$	1,494
Interest cost	1,316				1,239				3,948				3,721
Expected return on plan assets	(1,339		)		(1,502		)		(4,015		)		(4,506		)
Net cost	$	551			$	235			$	1,657			$	709

Postretirement Costs

Defined Benefit Plan Disclosure [Line Items]

Schedule Of Benefit Plans

The components of our consolidated net postretirement costs are set forth in the following table: 

	For the Three Months Ended September 30,								For the Nine Months Ended September 30,
	2019				2018				2019				2018
	(Dollars in thousands)
Service cost	$	—			$	3			$	—			$	3
Interest cost	236				229				717				731
Net cost	$	236			$	232			$	717			$	734

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