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. 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, net of shares withheld for taxes		13,320			13,320
Stock issuances, 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
Increase (Decrease) in Stockholders' Equity
Net income			29,586		29,586
Other comprehensive income (loss)				(425)	(425)
Stock issuances, net of shares withheld for taxes		3,128			3,128
Stock issuances, 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
Increase (Decrease) in Stockholders' Equity
Net income			61,494		$ 61,494
Other comprehensive income (loss)				999	999
Stock issuances, net of shares withheld for taxes		6,346			6,346
Stock issuances, net of shares withheld for taxes (in shares)	1,055
Income tax benefit (shortfall) from stock-based awards		(2,061)			(2,061)
Repurchase of common stock		(33,299)	(7,244)		(40,543)
Repurchase of common stock (in shares)	(893)
Stock-based compensation		39,609			39,609
Balance at Dec. 31, 2016	$ 4	$ 24,463	$ 801,999	$ 492	$ 826,958
Balance (in shares) at Dec. 31, 2016	41,889				41,889