Pension And Other Retirement Plans (Tables)

3 Months Ended

Mar. 31, 2019

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The components of net periodic benefit credit for Company-sponsored pension plans were as follows (in thousands):

	Pension Benefits
	Three Months Ended
	March 31, 2019			March 31, 2018
Service cost	$	213		$	293
Interest cost	19,169			17,740
Expected return on plans’ assets	(23,785		)	(24,818		)
Amortization of prior service costs	40			35
Net periodic benefit credit	$	(4,363	)	$	(6,750	)