Employee Stock Plans (Tables)

6 Months Ended

Mar. 31, 2017

Equity Incentive Plan

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Fair Value of Option Granted using Black-Scholes Pricing Model

The fair value of each option granted by the Company was estimated using a Black-Scholes pricing model, which uses the assumptions noted in the following table.

	Six Months Ended
	March 31,	April 1,
	2017	2016
Volatility	34.97 - 35.42%	33.06 - 40.52%
Risk-free interest rate	1.98 - 2.51%	1.61 - 2.24%
Expected life (years)	5 - 9	5 - 9
Dividends	0	0