Net Income Per Share - Summary of Reconciliation of Numerators and Denominators of Basic and Diluted Net Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014	Dec. 28, 2014
Basic net income per share:
Net income	$ 31,322	$ 30,151	$ 68,789	$ 63,884	$ 107,692
Weighted average shares outstanding	153,393	149,681	152,814	148,720
Basic net income per share	$ 0.20	$ 0.20	$ 0.45	$ 0.43
Diluted net income per share:
Net income	$ 31,322	$ 30,151	$ 68,789	$ 63,884	$ 107,692
Weighted average shares outstanding	153,393	149,681	152,814	148,720
Dilutive effect of equity-based awards:
Weighted average shares and equivalent shares outstanding	155,949	154,039	155,728	153,670
Diluted net income per share	$ 0.20	$ 0.20	$ 0.44	$ 0.42
Stock Option [Member]
Dilutive effect of equity-based awards:
Dilutive securities	2,552	4,358	2,884	4,950
RSUs [Member]
Dilutive effect of equity-based awards:
Dilutive securities	4		30