Condensed Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Income Statement [Abstract]
Net revenues	$ 236,483	$ 236,750	$ 349,821	$ 350,994
Cost of goods sold	154,205	149,487	242,620	238,417
Gross profit	82,278	87,263	107,201	112,577
Selling, general and administrative expense	49,715	49,612	93,756	91,114
Income from operations	32,563	37,651	13,445	21,463
Interest expense	115	114	223	223
Income before income taxes	32,448	37,537	13,222	21,240
Provision for income taxes	14,144	15,295	5,933	8,727
Net income	$ 18,304	$ 22,242	$ 7,289	$ 12,513
Net income per common and common equivalent share:
Basic	$ 0.76	$ 0.92	$ 0.30	$ 0.52
Diluted	$ 0.75	$ 0.90	$ 0.30	$ 0.51
Weighted average common and common equivalent shares outstanding:
Basic	24,142	24,248	24,141	24,098
Diluted	24,314	24,587	24,418	24,476