Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2018

Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]

Pension Benefit Costs

The following table details the components of other postretirement benefit costs:

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
	(In thousands)
Service cost	$	139	$	171	$	279	$	341
Interest cost(1)	919		1,059		1,837		2,117
Net benefit cost	$	1,058	$	1,230	$	2,116	$	2,458

(1) In accordance with the adoption of ASU 2017-07, “Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,” these costs are recorded within Nonoperating expenses in the Condensed Consolidated Income Statements on the line item “Non-service related pension and postretirement benefit costs.” For additional information about the adoption of the standard, see Note 2, “Accounting Policies” in the Condensed Consolidated Financial Statements.

The following table details the components of pension benefit costs (credits):

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
	(In thousands)
Interest cost(1)	$	2,270		$	2,991		$	4,541		$	5,982
Expected return on plan assets(1)	(3,080		)	(4,499		)	(6,161		)	(8,996		)
Pension settlement(1)	(1,371		)	(487		)	(1,371		)	(487		)
Net benefit credit	$	(2,181	)	$	(1,995	)	$	(2,991	)	$	(3,501	)