Derivative Financial Instruments Designated as Cash Flow Hedges (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Oct. 31, 2016 |
Oct. 31, 2015 |
Oct. 31, 2014 |
|
| Senior Notes 2023 [Member] | |||
| Derivative Cash Flow Hedge [Line Items] | |||
| Gain reclassified to interest expense on derivative financial instruments designated as cash flow hedges | $ 0.2 | $ 0.2 | $ 0.2 |
| Gain (loss) expected to be reclassified as interest expense on derivative financial instruments designated as cash flow hedges, over the next twelve months | 0.2 | ||
| Unamortized gain (loss) on interest rate lock | 1.3 | ||
| Senior Notes 2017 [Member] | |||
| Derivative Cash Flow Hedge [Line Items] | |||
| Gain (loss) expected to be reclassified as interest expense on derivative financial instruments designated as cash flow hedges, over the next twelve months | (0.2) | ||
| Unamortized gain (loss) on interest rate lock | (0.2) | ||
| Loss reclassified to interest expense on derivative financial instruments designated as cash flow hedges | $ 0.2 | $ 0.2 | $ 0.2 |