Stockholders' Equity - Summary of Employee Stock Purchase Plan Activity (Detail) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 26, 2015	Dec. 27, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 40,533	$ 32,580	$ 28,394
Employee stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	6,094	4,472	3,760
Employee contributions	$ 13,609	$ 12,253	$ 10,728
Shares issued (in shares)	1,369	1,229	1,438