Condensed Consolidated Statement Of Stockholders' Equity (USD $) In Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance, value at Dec. 29, 2012	$ 14	$ 43,822	$ 134,800	$ 6,936	$ 185,572
Balance, shares at Dec. 29, 2012	13,821				13,821
Net earnings			58,742		58,742
Other comprehensive income (loss), net of tax				(890)	(890)
Equity-based compensation expense		6,113			6,113
Common stock repurchased and retired, shares	(414)				(414)
Common stock repurchased and retired, value		(4,284)	(13,801)		(18,085)
Common stock issued under equity award plans, including tax benefit (expense), shares	453
Common stock issued under equity award plans, including tax benefit (expense), value		7,223			7,223
Tax impact of cancelled vested equity awards		(26)			(26)
Balance, value at Sep. 28, 2013	$ 14	$ 52,848	$ 179,741	$ 6,046	$ 238,649
Balance, shares at Sep. 28, 2013	13,860				13,860