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Benefit Plans (Narrative) (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Oct. 01, 2016 | Oct. 03, 2015 | Sep. 27, 2014 | Feb. 28, 2008
Defined Contribution Plan, Employer Discretionary Contribution Amount | 4.00% |  |  |
Defined Contribution Plan, Cost Recognized | $ 7,400,000 | $ 7,200,000 | $ 7,200,000 |
Stock-based compensation expense | 19,341,000 | 13,252,000 | 12,970,000 |
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation | 0 | 0 | 0 |
Share-based Payment Award Accelerated Compensation Cost | 5,200,000 |  |  |
Supplemental Employee Retirement Plan [Member] |  |  |  |
Deferred Compensation Liability, Classified, Noncurrent | 9,800,000 | 6,900,000 |  |
Deferred Compensation Plan Assets | 9,500,000 | 8,300,000 |  |
Contributions to participants' SERP accounts | $ 500,000 | 500,000 | 700,000 |
Other Postretirement Benefit Plan [Member] |  |  |  |
Term of deferred compensation agreements | 15 years |  |  |
Deferred Compensation Liability, Classified, Noncurrent | $ 600,000 | 1,300,000 |  |
Deferred Compensation Plan Assets | 9,300,000 | 8,900,000 |  |
Deferred Compensation Arrangement with Individual, Compensation Expense | 800,000 | $ 900,000 | $ 800,000 |
2016 Omnibus Incentive Plan [Member] |  |  |  |
Maximum number of shares authorized under the plan |  |  |  | 3,200,000
Long-term cash awards | $ 4,000,000 |  |  |
Employee Stock Option [Member] | 2008 Long Term Incentive Plan [Member] |  |  |  |
Granted, Number of Options/SARs |  | 100,000 | 200,000 |
Employee Stock Option [Member] | 2016 Omnibus Incentive Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 10 years |  |  |
Granted, Number of Options/SARs | 200,000 |  |  |
Stock Appreciation Rights (SARs) [Member] | 2008 Long Term Incentive Plan [Member] |  |  |  |
Granted, Number of Options/SARs |  | 100,000 | 100,000 |
Stock Appreciation Rights (SARs) [Member] | 2016 Omnibus Incentive Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 7 years |  |  |
Restricted Stock Units (RSUs) [Member] |  |  |  |
Unrecognized compensation cost | $ 15,800,000 |  |  |
Unrecognized compensation cost, weighted average period of recognition, years | 1 year 9 months |  |  |
Restricted Stock Units (RSUs) [Member] | 2008 Long Term Incentive Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  | 200,000 | 200,000 |
Restricted Stock Units (RSUs) [Member] | 2016 Omnibus Incentive Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 400,000 |  |  |
Performance Shares [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 100,000 | 100,000 | 0 |
Unrecognized compensation cost | $ 2,400,000 |  |  |
Unrecognized compensation cost, weighted average period of recognition, years | 1 year 11 months |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period | 0 |  |  |
Performance Shares [Member] | Minimum [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 0 |  |  |
Performance Shares [Member] | Maximum [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 300,000 |  |  |
Performance Shares [Member] | 2008 Long Term Incentive Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period |  | 100,000 | 100,000 |
Performance Shares [Member] | 2016 Omnibus Incentive Plan [Member] |  |  |  |
PSUs, Award Vesting Period | 3 years |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | 100,000 |  |  |
Employee Stock Option and Stock Appreciation Rights [Member] |  |  |  |
Granted, Number of Options/SARs | 229,000 | 221,000 | 318,000 |
Weighted Average Grant Date Fair Value of Options/SARs Granted | $ 12.82 | $ 14.55 | $ 15.78 |
Fair Value of Options/SARs Vested | $ 3,600,000 | $ 5,500,000 | $ 6,100,000 |
Total intrinsic value of options and SARs exercised | 7,400,000 | $ 7,700,000 | $ 13,500,000 |
Unrecognized compensation cost | $ 2,600,000 |  |  |
Unrecognized compensation cost, weighted average period of recognition, years | 1 year 1 month 4 days |  |  |

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- Definition Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 740 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=65880886&loc=d3e23524-113945 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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