Restricted Cash and Short-Term Investments (Details) - Restricted cash and short-term investments - USD ($) $ in Millions |
Apr. 29, 2018 |
Oct. 29, 2017 |
|---|---|---|
| Restricted Cash and Cash Equivalents Items [Line Items] | ||
| Restricted cash | $ 15.4 | $ 15.1 |
| Short-term investments | 3.2 | 3.5 |
| Short-Term Credit Facility | ||
| Restricted Cash and Cash Equivalents Items [Line Items] | ||
| Restricted as collateral | $ 1.9 | $ 1.9 |