Consolidated Statements of Shareholders' Equity (Parenthetical) (USD $)	3 Months Ended						4 Months Ended		12 Months Ended
	Sep. 28, 2014	Jul. 06, 2014	Apr. 13, 2014	Sep. 29, 2013	Jul. 07, 2013	Apr. 14, 2013	Jan. 19, 2014	Jan. 20, 2013	Sep. 28, 2014	Sep. 29, 2013	Sep. 30, 2012
Statement of Stockholders' Equity [Abstract]
Dividends declared per common share (in dollars per share)	$ 0.12	$ 0.12	$ 0.12	$ 0.10	$ 0.10	$ 0.10	$ 0.12	$ 1.10	$ 0.48	$ 1.40	$ 0.28