Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Income Tax Disclosure [Abstract]
Unrecognized tax benefits, beginning balance	$ 49,240	$ 45,084	$ 46,584
Gross decreases due to positions taken in prior years	(3,602)		(4,856)
Gross increases due to positions taken in prior years	71,801
Gross increases due to positions taken in current year		4,743
Decreases due to lapses of statute of limitations	(319)	(767)	(15)
Increases due to changes in tax rates		180	92
Positions assumed in business acquisition			3,279
Unrecognized tax benefits, ending balance	108,185	$ 49,240	$ 45,084
Gross decreases due to positions taken in current year	(5,098)
Decreases due to changes in tax rates	$ (3,837)