Goodwill and Other Intangible Assets (Details) - Goodwill - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2016	Dec. 27, 2015
Goodwill [Roll Forward]
Beginning of year	$ 114,101	$ 38,106
Additions	1,723	76,062
Adjustments	1,404	(67)
End of year	$ 117,228	$ 114,101