Debt - Net Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 26, 2015
Debt Disclosure [Abstract]
Interest expense	$ 19,716	$ 7,749	$ 8,335
Capitalized interest	(214)	(362)	(668)
Net interest expense	$ 19,502	$ 7,387	$ 7,667