Defined Pension Plans (Tables)

6 Months Ended

Jun. 30, 2019

Retirement Benefits [Abstract]

Schedule of Net Periodic Pension Costs

	Estimated		Actual
(In thousands)	2019		2018
Service cost – benefits earned during the year	$	3,708	$	4,017
Interest cost on projected benefit obligations		4,083		3,703
Expected return on plan assets		(4,754)		(5,202)
Net amortization and deferral		1,634		1,522
Net periodic pension cost	$	4,671	$	4,040

Schedule of Unfunded Supplemental Executive Retirement Plan

	Estimated		Actual
(In thousands)	2019		2018
Service cost – benefits earned during the year	$	97	$	92
Interest cost on projected benefit obligation		408		348
Net amortization		276		581
Net periodic pension cost	$	781	$	1,021