Employee Retirement Plans (Tables)

6 Months Ended

Jul. 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				Six Months Ended
	Jul 3, 2021		Jun 27, 2020		Jul 3, 2021		Jun 27, 2020
Net Periodic Pension Benefit:
Service cost	$	196	$	624	$	390	$	1,269
Interest cost	4,350		6,212		8,640		12,630
Expected return on assets	(19,804)		(17,405)		(39,335)		(35,387)
Amortization of net loss (gain)	3,196		810		6,348		1,647
Amortization of prior service cost (credit)	726		617		1,442		1,255
	$	(11,336)	$	(9,142)	$	(22,515)	$	(18,586)