Consolidated Condensed Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Income Statement [Abstract]
Sales	$ 157,584	$ 208,174
Cost of Products Sold	121,865	156,097
Gross Profit	35,719	52,077
Selling, General and Administrative Expenses	28,867	29,196
Impairment Loss	74,408	0
(Loss) Income from Operations	(67,556)	22,881
Gain on Sale of Business	0	(80,133)
Other Expense, Net of Other Income	388	215
Interest Expense, Net of Interest Income	1,333	1,804
(Loss) Income Before Income Taxes	(69,277)	100,995
(Benefit from) Provision for Income Taxes	(2,314)	22,849
Net (Loss) Income	$ (66,963)	$ 78,146
(Loss) Earnings Per Share:
Basic (in usd per share)	$ (2.17)	$ 2.40
Diluted (in usd per share)	$ (2.17)	$ 2.35