Impairment, Disposition Of Property And Equipment, Restaurant Closing Costs And Restructuring Restructuring Costs (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 30, 2012
Restructuring Cost and Reserve [Line Items]
Enhanced pension benefits	$ 0	$ 0	$ 6,167
Severance costs	2,141	2,821	6,987
Other restructuring costs	6,480	630	2,307
Additions	8,621	3,451	15,461
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	2,141	2,821
Restructuring Reserve [Roll Forward]
Balance at beginning of year	253	1,758
Cash payments	1,857	4,326
Balance at end of year	$ 537	$ 253