Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2023

Retirement Benefits [Abstract]

Components of employee benefit plan expense

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

	Three Months Ended  June 30,				Six Months Ended  June 30,
(in thousands)	2023		2022		2023		2022
Interest cost	$	5,935	$	4,333	$	11,870	$	8,666
Expected return on plan assets, net of expenses	(6,307)		(6,224)		(12,613)		(12,448)
Amortization of actuarial loss and prior service cost	4		1,015		9		2,029
Total for defined benefit pension plan	(368)		(876)		(734)		(1,753)
SERPs	234		214		466		428
Defined contribution plan	4,166		3,871		8,595		8,324
Net periodic benefit cost	$	4,032	$	3,209	$	8,327	$	6,999