Restructuring - Textual (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2015	Dec. 27, 2014	Dec. 28, 2013
Restructuring Cost And Reserve [Line Items]
Restructuring charge	$ 1,380	$ 2,266	$ 1,740
Employee severance and benefits [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charge	1,369	1,163
Other [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charge	11	319
Facility termination costs [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring charge	$ 0	$ 784