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Basis Of Presentation (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 14, 2019 USD ($) restaurant | Apr. 15, 2018 USD ($) restaurant | Apr. 14, 2019 USD ($) segment restaurant | Apr. 15, 2018 USD ($) restaurant
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Document Fiscal Year Focus |  |  | 2019 |
Number of restaurants | restaurant | 2,240 | 2,245 | 2,240 | 2,245
Number of reporting segments | segment |  |  | 1 |
Contractual obligation |  |  | 5.00% |
Incremental Corporate Advertising Contributions |  |  | $ 2,000 | $ 1,800
Marketing and advertising expense | $ 3,900 | $ 7,300 | 11,100 | 16,100
Pension Cost Reclassification | $ 343 | $ 400 | $ 799 | $ 1,000
Entity Operated Units |  |  |  |
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of restaurants | restaurant | 137 | 188 | 137 | 188
Franchised Units |  |  |  |
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of restaurants | restaurant | 2,103 | 2,057 | 2,103 | 2,057
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Accounting Standards Update 2014-09 [Member] | Franchise Fees [Member] |  |  |  |
Nature Of Operations And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption | $ 50,300 |  | $ 50,300 |
Contract with Customer, Liability, Current | (4,964) |  | (4,964) |
Contract liabilities noncurrent | $ 45,300 |  | $ 45,300 |

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