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		12 Months Ended
	Apr. 01, 2018	Apr. 02, 2017	Dec. 31, 2017
Basic net income per share:
Net income	$ 66,624	$ 46,287	$ 158,440
Weighted average shares outstanding	132,423	137,069
Basic net income per share	$ 0.50	$ 0.34
Diluted net income per share:
Net income	$ 66,624	$ 46,287	$ 158,440
Weighted average shares outstanding - basic	132,423	137,069
Dilutive effect of equity-based awards:
Assumed exercise of options to purchase shares	807	2,962
Weighted average shares and equivalent shares outstanding	133,752	140,147
Diluted net income per share	$ 0.50	$ 0.33
RSUs [Member]
Dilutive effect of equity-based awards:
Dilutive effect	221	62
RSAs [Member]
Dilutive effect of equity-based awards:
Dilutive effect	160	19
PSAs [Member]
Dilutive effect of equity-based awards:
Dilutive effect	141	35