Employee Benefit Plans (Defined Benefit Retirement Plan Assets Subject To Fair Value Measurements) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 27, 2014		Sep. 28, 2013		Sep. 29, 2012
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets	$ 20,269		$ 18,589		$ 13,058
Mutual Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets	20,269	[1]	18,589	[1]
Mutual Fund [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit retirement plan assets	$ 20,269	[1]	$ 18,589	[1]

[1] The fair value of the mutual fund is generally valued based on closing prices from national exchanges, if the underlying securities are traded on an active market, or fixed income pricing models that use observable market inputs.