Pension Benefits (Tables)

9 Months Ended

Sep. 30, 2020

Pension Benefits

Summary of pension costs

	Three Months Ended				Nine Months Ended
(Amounts in thousands)	September 30, 2020		September 30, 2019		September 30, 2020		September 30, 2019
Service cost	$	325	$	313	$	975	$	988
Interest cost		1,593		1,995		4,838		5,999
Expected return on plan assets		(3,280)		(3,318)		(9,838)		(9,979)
Amortization of net actuarial loss		235		205		750		589
Total net periodic benefit	$	(1,127)	$	(805)	$	(3,275)	$	(2,403)

Schedule of weighted average assumptions used to determine net cost

Weighted-Average Assumptions Used To Determine Net Cost

	Three Months Ended				Nine Months Ended
	September 30, 2020		September 30, 2019		September 30, 2020		September 30, 2019
Discount rate	3.00	%	4.05	%	3.00	%	4.05	%
Rate of compensation increase	N/A		N/A		N/A		N/A
Expected return on plan assets	6.50	%	7.25	%	6.50	%	7.25	%