CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jul. 03, 2012	Jan. 03, 2012
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	250,000,000	250,000,000
Common stock, shares issued	86,949,039	85,863,313
Treasury stock, shares	33,095,777	31,196,128
Preferred stock
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Junior participating cumulative preferred stock
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	150,000	150,000
Preferred stock, shares issued	0	0