Benefit Plans (Tables)

3 Months Ended

Mar. 30, 2019

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The components of net periodic benefit cost for the three months ended March 30, 2019 and March 31, 2018 were as follows: 

	For the Three Months Ended
(in thousands)	March 30, 2019			March 31, 2018
Components of net periodic benefit cost:
Service cost	$	500		$	533
Interest cost	784			501
Expected return on plan assets	(790		)	(540		)
Amortization of prior service	62			74
Net periodic benefit cost	$	556		$	568