Compensation Plans (Tables)

9 Months Ended

Jun. 28, 2014

Compensation Plans

Schedule of assumptions used in estimating the grant-date fair value of employee stock options and similar instruments

	Thirty-nine weeks ended
	June 28, 2014			June 29, 2013
Average expected life	5.5 years			6.0 years
Average volatility	74		%	81		%
Dividend yield	1.31		%	—		%
Risk-free interest rate	1.70		%	1.02		%
Weighted average fair value	$	42.04		$	31.17

Schedule of assumptions used in estimating the grant-date fair value of employees' purchase rights under Employee Stock Purchase Plan

	Thirty-nine weeks ended
	June 28, 2014			June 29, 2013
Average expected life	6 months			6 months
Average volatility	55		%	86		%
Dividend yield	1.14		%	—		%
Risk-free interest rate	0.06		%	0.13		%
Weighted average fair value	$	27.28		$	14.38