Retirement Plans (Fair Values Of The Qualified Plan's Assets) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 28, 2014		Sep. 29, 2013		Sep. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 356,312		$ 336,425
Cash And Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	900		4,344
Equity, U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	17,063		26,317
Commingled [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	147,221		159,612
Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	13,122		4,017
Government And Mortgage Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11,631		9,121
Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	121,666		98,654
Real estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32,593		29,352
Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	12,116		5,008
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	202,053		220,955
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Cash And Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	900	[1]	4,344	[1]
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Equity, U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	17,063	[2]	26,317	[2]
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Commingled [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	147,221	[3]	159,612	[3]
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	13,122	[4]	0	[4]
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Government And Mortgage Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11,631	[5]	9,121	[5]
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[6]	16,553	[6]
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Real estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[7]	0	[7]
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	12,116		5,008
Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	121,666		86,118
Significant Other Observable Inputs (Level 2) [Member] | Cash And Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[1]	0	[1]
Significant Other Observable Inputs (Level 2) [Member] | Equity, U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	0	[2]
Significant Other Observable Inputs (Level 2) [Member] | Commingled [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[3]	0	[3]
Significant Other Observable Inputs (Level 2) [Member] | Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[4]	4,017	[4]
Significant Other Observable Inputs (Level 2) [Member] | Government And Mortgage Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[5]	0	[5]
Significant Other Observable Inputs (Level 2) [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	121,666	[6]	82,101	[6]
Significant Other Observable Inputs (Level 2) [Member] | Real estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[7]	0	[7]
Significant Other Observable Inputs (Level 2) [Member] | Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32,593	[7]	29,352
Significant Unobservable Inputs (Level 3) [Member] | Cash And Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[1]	0	[1]
Significant Unobservable Inputs (Level 3) [Member] | Equity, U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	0	[2]
Significant Unobservable Inputs (Level 3) [Member] | Commingled [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[3]	0	[3]
Significant Unobservable Inputs (Level 3) [Member] | Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[4]	0	[4]
Significant Unobservable Inputs (Level 3) [Member] | Government And Mortgage Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[5]	0	[5]
Significant Unobservable Inputs (Level 3) [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[6]	0	[6]
Significant Unobservable Inputs (Level 3) [Member] | Real estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32,593	[7]	29,352	[7]	25,785
Significant Unobservable Inputs (Level 3) [Member] | Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0		$ 0

[1] Cash and cash equivalents are comprised of commercial paper, short-term bills and notes, and short-term investment funds, which are valued at unadjusted quoted market prices.

[2] U.S. equity securities are comprised of investments in common stock of U.S. companies for total return purposes. These investments are valued by the trustee at closing prices from national exchanges on the valuation date.

[3] Commingled equity securities are comprised of investments in mutual funds, the fair value of which is determined by reference to the fund’s underlying assets, which are primarily marketable equity securities that are traded on national exchanges and valued at unadjusted quoted market prices.

[4] Corporate bonds are comprised of mutual funds traded on national securities exchanges, valued at unadjusted quoted market prices, as well as securities traded in markets that are not considered active, which are valued based on quoted market prices, broker/dealer quotations, or alternative pricing sources with reasonable levels of price transparency.

[5] Government and mortgage securities are comprised of government and municipal bonds, including treasury bills, notes and index linked bonds which are valued using an unadjusted quoted price in an active market or observable, market-based inputs.

[6] Other fixed income securities are comprised of other commingled funds invested in registered securities which are valued at the unadjusted quoted price in an active market or exchange and long-duration US government/credit funds which are valued based on observable inputs, which include quoted market prices in active markets for similar securities, valuations based on commonly quoted benchmark interest rates, maturities, ratings and/or securities indices.

[7] Real estate is investments in a real estate investment trust for purposes of total return. These investments are valued at unit values provided by the investment managers and their consultants.