Number of Restricted Stock Unit Awards Outstanding (Detail) (Restricted Stock [Member], USD $)	12 Months Ended
	Jan. 03, 2014		Dec. 28, 2012		Dec. 30, 2011
Restricted Stock [Member]
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items]
Number of shares outstanding, awards balance:	536,607	[1]	542,334	[1]	555,382	[1]
Number of shares outstanding, awards granted:	235,865	[1]	235,506	[1]	249,997	[1]
Number of shares outstanding, awards vested:	(285,661)	[1]	(235,912)	[1]	(260,064)	[1]
Number of shares outstanding, awards cancelled	(8,464)	[1]	(5,321)	[1]	(2,981)	[1]
Number of shares outstanding, awards balance:	478,347	[1]	536,607	[1]	542,334	[1]
Weighted-average fair value awards balance	$ 33.95	[1]	$ 30.32	[1]	$ 25.64	[1]
Weighted-average fair value awards granted	$ 54.17	[1]	$ 48.04	[1]	$ 38.59	[1]
Weighted-average fair value awards vested	$ 36.74	[1]	$ 39.69	[1]	$ 28.29	[1]
Weighted-average fair value awards cancelled	$ 40.67	[1]	$ 32.69	[1]	$ 29.58	[1]
Weighted-average fair value awards balance	$ 42.14	[1]	$ 33.95	[1]	$ 30.32	[1]

[1] Does not include employee stock purchase or stock option plans.