CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Income Statement [Abstract]
Net sales	$ 1,183,680	$ 1,085,838
Cost of merchandise sold	787,461	733,747
Gross profit	396,219	352,091
Selling, general and administrative expenses	290,270	261,469
Depreciation and amortization	27,220	22,699
Operating income	78,729	67,923
Interest expense, net	454	179
Income before income taxes	78,275	67,744
Income tax expense	29,466	23,738
Net income	$ 48,809	$ 44,006
Net income per share - basic (in dollars per share)	$ 0.35	$ 0.32
Net income per share - diluted (in dollars per share)	$ 0.35	$ 0.31
Weighted average shares outstanding
Basic (in shares)	139,118	138,896
Diluted (in shares)	141,032	141,610
Dividends declared per common share outstanding (in dollars per share)	$ 0.13	$ 0.10