Accounting Standards Adopted in Current Year - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Excess tax benefits (shortfalls) in equity		$ 327	$ (932)
Taxes paid related to net share settlement of equity awards	$ 9,548	0	0
Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Excess tax benefits (shortfalls) in equity		327	(932)
Taxes paid related to net share settlement of equity awards		$ 2,232	$ 447