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Inventories (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Jul. 01, 2018 | Oct. 01, 2017 | Jul. 02, 2017
Inventory [Line Items] |  |  |
Roasted Coffee Inventory | $ 267.6 | $ 301.1 | $ 258.4
Price-to-be-fixed Contract [Member] |  |  |
Inventory [Line Items] |  |  |
Amount of coffee committed to be purchased | 343.0 |  |
Fixed-price Contract [Member] |  |  |
Inventory [Line Items] |  |  |
Amount of coffee committed to be purchased | 843.0 |  |
Coffee Contracts [Member] |  |  |
Inventory [Line Items] |  |  |
Price-to-be-fixed contracts fixed through use of futures contracts |  | 0.0 |
Designated as Hedging Instrument [Member] | Coffee Contracts [Member] |  |  |
Inventory [Line Items] |  |  |
Derivative Assets | 0.0 | $ 0.0 |
Price-to-be-fixed contracts fixed through use of futures contracts | $ 4.0 |  |

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