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Employee Benefit Plans, Pensions, and Other Retiree Benefits (401(k) Plan) (Details) - USD ($) shares in Millions, $ in Millions | 12 Months Ended
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Sep. 30, 2016 | Oct. 02, 2015 | Oct. 03, 2014
Compensation and Retirement Disclosure [Abstract] |  |  |
Minimum age requirement |  | 21 years |
Contribution percentage of employee earnings to retirement plan |  | 4.00% |
Contribution of common shares to savings and retirement plan (in shares) | 0.0 | 0.1 | 0.2
Contribution of common shares to savings and retirement plan | $ 2.8 | $ 7.2 | $ 6.2

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- Definition Contribution Of Common Shares To Savings And Retirement Plans Shares (401k) + References No definition available. + Details
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- Definition Minimum Age Requirement + References No definition available. + Details
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- References No definition available. + Details
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- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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