Capital Assets (Property and Equipment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 27, 2014	Jun. 27, 2015	Sep. 27, 2014
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 213,357	$ 206,898
Less accumulated depreciation		(133,793)	(125,323)
Property and equipment, net		79,564	81,575
Goodwill		27,484	26,123
Change in goodwill	$ 1,700
Land And Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross		1,705	1,710
Buildings And Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross		52,925	54,271
Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 158,727	$ 150,917