Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Total
Balance at Dec. 29, 2012	$ 4	$ 10,122	$ 640,793	$ (946)	$ 649,973
Balance (in shares) at Dec. 29, 2012	41,879
Increase (Decrease) in Stockholders' Equity
Net income			49,819		49,819
Other comprehensive income (loss)				262	262
Stock issuances under employee plans, net of shares withheld for taxes		15,301			15,301
Stock issuances under employee plans, net of shares withheld for taxes (in shares)	1,057
Income tax benefit (shortfall) from stock-based awards		(772)			(772)
Repurchase of common stock		(26,022)			(26,022)
Repurchase of common stock (in shares)	(661)
Stock-based compensation		30,753			30,753
Stock issued in business combination		19,248			19,248
Stock issued in business combination (in shares)	504
Balance at Dec. 28, 2013	$ 4	48,630	690,612	(684)	738,562
Balance (in shares) at Dec. 28, 2013	42,779
Increase (Decrease) in Stockholders' Equity
Net income			38,021		38,021
Other comprehensive income (loss)				602	602
Stock issuances under employee plans, net of shares withheld for taxes		13,320			13,320
Stock issuances under employee plans, net of shares withheld for taxes (in shares)	1,124
Income tax benefit (shortfall) from stock-based awards		120			120
Repurchase of common stock		(71,676)			(71,676)
Repurchase of common stock (in shares)	(1,678)
Stock-based compensation		39,107			39,107
Balance at Jan. 03, 2015	$ 4	29,501	728,633	(82)	$ 758,056
Balance (in shares) at Jan. 03, 2015	42,225				42,225
Increase (Decrease) in Stockholders' Equity
Net income			29,586		$ 29,586
Other comprehensive income (loss)				(425)	(425)
Stock issuances under employee plans, net of shares withheld for taxes		3,128			3,128
Stock issuances under employee plans, net of shares withheld for taxes (in shares)	1,152
Income tax benefit (shortfall) from stock-based awards		(613)			(613)
Repurchase of common stock		(60,978)	(10,470)		(71,448)
Repurchase of common stock (in shares)	(1,650)
Stock-based compensation		42,830			42,830
Balance at Jan. 02, 2016	$ 4	$ 13,868	$ 747,749	$ (507)	$ 761,114
Balance (in shares) at Jan. 02, 2016	41,727				41,727