Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Jan. 01, 2012
Statement of Comprehensive Income [Abstract]
Net income	$ 125,308	$ 151,254	$ 86,628
Unrealized (loss) gain on available-for-sale securities, net of deferred tax	(889)	6	352
Total comprehensive income	$ 124,419	$ 151,260	$ 86,980