Capital Structure (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
	Sep. 11, 2011	Jan. 01, 2012	Jan. 02, 2011	Jan. 03, 2010
Components Of Common Stock [Line Items]
Share repurchase program, approved amount	$ 200,000,000
Repurchased common stock, shares		6,414,813	343,884	0
Repurchased common stock, value		165,007,000	5,384,000
Stock repurchase remaining authorized repurchase amount		$ 82,300,000
Common stock, shares authorized		170,000,000	170,000,000
Voting [Member]
Components Of Common Stock [Line Items]
Common stock, shares authorized		160,000,000
Non-Voting [Member]
Components Of Common Stock [Line Items]
Common stock, shares authorized		10,000,000