CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Retained Earnings [Member]
Balance at Dec. 28, 2013	$ 700,731	$ 545	$ 4,332	$ (10,082)	$ 705,936
Balance (in shares) at Dec. 28, 2013	54,541,879	54,541,879
Income tax benefit from stock-based compensation	4,356		4,356
Exercise of stock options	7,771	2	7,769
Exercise of stock options (in shares)		251,876
Withholdings from vesting of restricted stock	(4,472)	(1)	(4,471)
Withholdings from vesting of restricted stock (in shares)		(65,391)
Restricted stock activity	0	3	(3)
Restricted stock activity (in shares)		124,849
Stock-based compensation expense	12,802		12,802
Issuance of common stock	1,081		1,081
Issuance of common stock (in shares)		15,559
Repurchase of common stock	(62,769)	(19)	(25,866)		(36,884)
Repurchase of common stock (in shares)		(1,891,253)
Cash dividends declared and paid	(30,453)				(30,453)
Comprehensive income	122,534			(3,545)	126,079
Balance at Sep. 27, 2014	$ 751,581	$ 530	$ 0	$ (13,627)	$ 764,678
Balance (in shares) at Sep. 27, 2014	52,977,519	52,977,519