Employee Benefit Plans (Narrative) (Details) $ in Thousands		12 Months Ended
	Oct. 01, 2015	Oct. 01, 2016 USD ($) segment	Oct. 01, 2016 USD ($)	Oct. 03, 2015 USD ($)	Sep. 27, 2014 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Components in contributory retirement savings plan, (in components) | segment		2
Age of employees that may participate in catch up contributions		50 years
Maximum percentage of employee contribution			6.00%
Employer matching pre-tax and Roth 401(k) contribution, percent	50.00%		75.00%
Employer matching contributions		$ 4,628		$ 2,732	$ 2,559
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%
Pretax amount recognized in other comprehensive income		$ (584)
Portion of accumulated comprehensive income recognized as component of net periodic benefit cost over the next fiscal year		1,006
Actuarial gain (loss)		$ (6,123)		$ (1,256)
Discount rate		1.28%	1.28%	2.27%
Discount rate calculation assumption, description		The discount rate is calculated based on zero-coupon bond yields published by the Deutsche Bundesbank for maturities that match the weighted average duration of the pension liability, adjusted for the average credit spread of corporate bond rates above the government bond yields.
Accumulated benefit obligation of the defined benefit retirement plan		$ 30,716	$ 30,716	$ 24,657
Aggregate liabilities associated with other postretirement plans		$ 4,508	$ 4,508	$ 3,247
Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee benefit plan target allocatoins		0.5
Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee benefit plan target allocatoins		0.5