Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2020

Retirement Benefits [Abstract]

Components of benefit expense

The components of the employee benefit plans expense consisted of the following:

	Three Months Ended  March 31,
(in thousands)	2020			2019
Interest cost	$	4,917		$	5,800
Expected return on plan assets, net of expenses	(5,256		)	(5,058		)
Amortization of actuarial loss and prior service cost	1,125			572
Total for defined benefit pension plan	786			1,314
Multi-employer plans	9			41
SERPs	240			258
Defined contribution plan	3,779			2,995
Net periodic benefit cost	$	4,814		$	4,608