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Discontinued Operations - Narrative (Details) - USD ($) $ in Millions | 4 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 20, 2019 | Sep. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Other Nonrecurring Income | $ 3.7 |
Other Nonrecurring Expense | 35.4 |
Disposal Group, Including Discontinued Operation, Accrued Income Tax Payable | 2.8 |
Lease Guarantee | $ 35.9 |
Term Loan [Member] | Qdoba |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Repayments of Debt |  | $ 260.0

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