Consolidated Condensed Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 04, 2021	Jul. 05, 2020	Jul. 04, 2021	Jul. 05, 2020
Income Statement [Abstract]
NET SALES	$ 294,785	$ 259,504	$ 548,045	$ 547,673
Cost of Sales	185,793	162,210	343,015	336,068
GROSS PROFIT ON SALES	108,992	97,294	205,030	211,605
Selling, General and Administrative Expenses	79,830	80,058	159,132	167,741
Restructuring Charges	(62)	(157)	(192)	(1,275)
Goodwill and Intangible Asset Impairment	0	0	0	121,258
OPERATING INCOME (LOSS)	29,224	17,393	46,090	(76,119)
Interest Expense	7,289	4,965	14,545	10,595
Other Expense	617	5,139	1,332	6,630
INCOME (LOSS) BEFORE INCOME TAX EXPENSE	21,318	7,289	30,213	(93,344)
Income Tax Expense	5,807	2,580	7,764	4,114
NET INCOME (LOSS)	$ 15,511	$ 4,709	$ 22,449	$ (97,458)
Earnings (Loss) Per Share - Basic (in dollars per share)	$ 0.26	$ 0.08	$ 0.38	$ (1.67)
Earnings (Loss) Per Share - Diluted (in dollars per share)	$ 0.26	$ 0.08	$ 0.38	$ (1.67)
Common Shares Outstanding – Basic (in shares)	59,041	58,484	58,885	58,466
Common Shares Outstanding – Diluted (in shares)	59,041	58,484	58,885	58,466