Earnings per Share (EPS) and Common Stock (Narrative) (Details) (USD $)	3 Months Ended	6 Months Ended		12 Months Ended
	Mar. 30, 2013	Mar. 29, 2014	Mar. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share and Common Stock
Stock option excluded from computation of EPS, shares		200,000
Common stock, shares authorized		500,000,000			500,000,000
Stock authorized to repurchase				$ 100,000,000
Stock repurchased during period, shares	800,000	1,100,000	1,500,000
Value of stock repurchased	$ 19,100,000	$ 40,000,000	$ 34,900,000