Stockholders' Equity and Stock Compensation Plans (Tables)

12 Months Ended

Oct. 01, 2017

Stockholders' Equity Note [Abstract]

Schedule of the stock-based compensation and related income tax benefits

The stock-based compensation and related income tax benefits were as follows:

	Fiscal Year Ended
	October 1, 2017			October 2, 2016			September 27, 2015
	(in thousands)
Total stock-based compensation	$	13,450		$	12,964		$	10,926
Income tax benefit related to stock-based compensation	(4,715		)	(4,656		)	(3,811		)
Stock-based compensation, net of tax benefit	$	8,735		$	8,308		$	7,115

Schedule of stock option activity

Stock option activity for the fiscal year ended October 1, 2017 was as follows:

	Number of Options (in thousands)		Weighted- Average Exercise Price per Share		Weighted- Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value (in thousands)
Outstanding on October 2, 2016	2,367		$	24.88
Granted	183		40.67
Exercised	(791	)	44.19
Forfeited	(6	)	17.72
Outstanding at October 1, 2017	1,753		27.18		4.59	$	33,963
Vested or expected to vest at October 1, 2017	1,696		27.31		4.50	32,640
Exercisable on October 1, 2017	1,242		25.10		3.43	26,636

Schedule of assumptions used in the calculation of the fair value of stock options using the Black-Scholes option pricing model

The fair value of our stock options was estimated on the date of grant using the Black-Scholes option pricing model. The following assumptions were used in the calculation:

	Fiscal Year Ended
	October 1, 2017	October 2, 2016	September 27, 2015
Dividend yield	1.0%	1.2%	1.0%
Expected stock price volatility	36.1% - 38.8%	36.1% - 38.8%	36.2% - 38.8%
Risk-free rate of return, annual	1.7% - 1.9%	1.6% - 1.8%	1.5% - 1.7%

Schedule of restricted stock activity

Restricted stock activity for the fiscal year ended October 1, 2017 was as follows:

	Number of Shares (in thousands)		Weighted- Average Grant Date Fair Value
Nonvested balance at October 2, 2016	35		$	28.58
Granted	14		28.58
Vested	(49	)	28.58
Forfeited	—		—
Nonvested balance at October 1, 2017	—		—
Vested or expected to vest at October 1, 2017	—		—

Schedule of performance-based awards

PSU activity for the fiscal year ended October 1, 2017 was as follows:

	Number of Shares (in thousands)	Weighted- Average Grant Date Fair Value
Nonvested balance at October 2, 2016	277	$	31.65
Granted	99	48.36
Nonvested balance at October 1, 2017	376	36.05

Schedule of RSU activity

RSU activity for the fiscal year ended October 1, 2017 was as follows:

	Number of Shares (in thousands)		Weighted- Average Grant Date Fair Value
Nonvested balance at October 2, 2016	499		$	27.16
Granted	226		41.00
Vested	(186	)	26.98
Forfeited	(28	)	30.15
Nonvested balance at October 1, 2017	511		33.19

Summary of shares purchased, weighted-average purchase price, cash received, and the aggregate intrinsic value for shares purchased under the ESPP

The following table summarizes shares purchased, weighted-average purchase price, cash received and the aggregate intrinsic value for shares purchased under the ESPP:

	Fiscal Year Ended
	October 1, 2017		October 2, 2016		September 27, 2015
	(in thousands, except for purchase price)
Shares purchased	190		209		243
Weighted-average purchase price	$	26.02	$	22.54	$	21.44
Cash received from exercise of purchase rights	$	4,940	$	4,707	$	5,204
Aggregate intrinsic value	$	—	$	710	$	1,277

Schedule of the assumptions used in the Black-Scholes option pricing model in estimating the grant date fair value of each award granted under the ESPP

The grant date fair value of each award granted under the ESPP was estimated using the Black-Scholes option pricing model with the following assumptions:

	Fiscal Year Ended
	October 1, 2017	October 2, 2016	September 27, 2015
Dividend yield	1.0%	1.3%	1.1%
Expected stock price volatility	22.4%	23.7%	23.7%
Risk-free rate of return, annual	0.9%	0.2%	0.2%
Expected life (in years)	1	1	1