Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Income Statement [Abstract]
Net sales	$ 451,198	$ 442,782
Cost of sales	316,768	314,871
Gross profit	134,430	127,911
Selling, general and administrative expenses	116,108	105,554
Net (gain) / loss on sale of assets	(28)	27
Operating income	18,350	22,330
Interest expense, net	3,807	3,327
Other expense (income), net	86	(64)
Earnings before income taxes	14,457	19,067
Income tax expense	4,680	6,318
Net earnings	$ 9,777	$ 12,749
Earnings per share:
Basic earnings per share	$ 0.36	$ 0.47
Diluted earnings per share	$ 0.35	$ 0.46
Average shares outstanding:
Basic	27,059	27,188
Diluted	27,806	27,878
Dividends declared per share	$ 0.18	$ 0.18