Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Income Statement [Abstract]
Net sales	$ 233,182	$ 254,175	$ 490,912	$ 497,966
Cost of goods sold	154,034	167,027	326,967	323,327
Gross profit	79,148	87,148	163,945	174,639
Selling, general and administrative expenses	61,525	59,925	121,260	117,676
Income from operations	17,623	27,223	42,685	56,963
Other (expense) income, net	(297)	27	2,334	57
Income before income taxes	17,326	27,250	45,019	57,020
Provision for income taxes	3,441	5,751	8,359	12,115
Net income	$ 13,885	$ 21,499	$ 36,660	$ 44,905
Earnings Per Share:
Basic	$ 0.43	$ 0.66	$ 1.13	$ 1.37
Diluted	$ 0.43	$ 0.66	$ 1.13	$ 1.37
Weighted Average Shares Outstanding:
Basic	32,269	32,588	32,312	32,722
Diluted	32,338	32,676	32,388	32,811