Employee Benefit Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 28, 2013 item	Sep. 29, 2012	Oct. 01, 2011
Defined Benefit Plan Disclosure [Line Items]
Components in contributory retirement savings plan, (in components)	2
Employer matching pre-tax contribution, percent	50.00%
Age of employees that may participate in catch up contributions	50 years
Maximum percentage of employee contribution	6.00%
Employer matching contributions	$ 2.4	$ 2.2	$ 2.0
Employee minimum hours of service that make them eligible for retirement plan, in hours	1000 hours
Number of years as participate that employees have a vested interest equal to 100% of employer contributions, in years	3 years
Percent of employer contributions that employees have a vested interest after 3 years	100.00%
Contribution under plan	3.0	2.7	2.5
Pretax amount recognized in other comprehensive income	0.5
Portion of accumulated comprehensive income recognized as component of net periodic benefit cost over the next fiscal year	0.5
Accumulated benefit obligation of the defined benefit retirement plan	21.7	19.5
Aggregate liabilities associated with other postretirement plans	$ 4.4	$ 3.2
Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee benefit plan target allocatoins	50%
Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee benefit plan target allocatoins	50%
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee compensation percentage the company will contribute, subject to limitations imposed by federal law	3.00%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee compensation percentage the company will contribute, subject to limitations imposed by federal law	6.00%
Maximum [Member] | Fixed Income And Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee benefit plan target allocatoins	65