Stock-Based Compensation (Schedule Of Stock-Based Compensation Expense In General And Administrative Expenses) (Details) (General And Administrative Expense [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 27, 2014	Mar. 28, 2013	Mar. 27, 2014	Mar. 28, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 805	$ 872	$ 1,729	$ 1,725
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	101	89	229	202
Time-Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	493	650	1,254	1,342
Performance-Based Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 211	$ 133	$ 246	$ 181