Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Income Statement [Abstract]
Net Revenues	$ 180,495	$ 154,827	$ 353,061	$ 305,282
Cost of Sales	142,430	122,799	279,302	246,499
Gross Profit	38,065	32,028	73,759	58,783
Selling, General and Administrative Expenses	24,461	21,194	47,307	40,521
Restructuring Charges	0	5,238	0	7,411
Operating Income	13,604	5,596	26,452	10,851
Interest Expense	(4,426)	(3,763)	(8,777)	(6,661)
Income Before Taxes	9,178	1,833	17,675	4,190
Income Tax Expense (Benefit)	1,363	242	2,388	(1)
Net Income	$ 7,815	$ 1,591	$ 15,287	$ 4,191
Earnings Per Share
Basic earnings per share (in dollars per share)	$ 0.68	$ 0.14	$ 1.33	$ 0.37
Diluted earnings per share (in dollars per share)	$ 0.66	$ 0.14	$ 1.30	$ 0.36
Weighted-Average Number of Common Shares Outstanding
Basic (in shares)	11,513	11,394	11,475	11,370
Diluted (in shares)	11,758	11,624	11,754	11,609