Employee Retirement Plans (Tables)

3 Months Ended

Apr. 03, 2021

Employee Retirement Plans [Abstract]

Schedule of Costs of Retirement Plans [Table Text Block]

The following table summarizes the company's net periodic pension benefit related to the AGA Group pension plans (in thousands):

	Three Months Ended
	Apr 3, 2021		Mar 28, 2020
Net Periodic Pension Benefit:
Service cost	$	194	$	645
Interest cost	4,290		6,418
Expected return on assets	(19,531)		(17,982)
Amortization of net loss (gain)	3,152		837
Amortization of prior service cost (credit)	716		638
	$	(11,179)	$	(9,444)