Consolidated Condensed Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018
Income Statement [Abstract]
NET SALES	$ 348,352	$ 318,325	$ 1,003,547	$ 842,514
Cost of Sales	212,590	218,380	613,797	539,839
GROSS PROFIT ON SALES	135,762	99,945	389,750	302,675
Selling, General and Administrative Expenses	91,414	84,160	286,123	230,199
Restructuring Charges	672	0	672	0
OPERATING INCOME	43,676	15,785	102,955	72,476
Interest Expense	6,577	4,852	20,180	9,207
Other Expense	1,015	1,570	2,333	5,350
INCOME BEFORE INCOME TAX EXPENSE	36,084	9,363	80,442	57,919
Income Tax Expense	9,874	1,191	17,674	14,061
NET INCOME	$ 26,210	$ 8,172	$ 62,768	$ 43,858
Earnings Per Share - Basic (USD per share)	$ 0.45	$ 0.14	$ 1.06	$ 0.74
Earnings Per Share - Diluted (USD per share)	$ 0.45	$ 0.14	$ 1.06	$ 0.74
Common Shares Outstanding – Basic (in shares)	58,433	59,496	59,117	59,553
Common Shares Outstanding – Diluted (in shares)	58,434	59,536	59,122	59,594