Share-Based Compensation Plans - Performance Share Narrative (Details) - Stock options - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | ||
---|---|---|---|
Oct. 31, 2015 |
Oct. 31, 2014 |
Oct. 31, 2013 |
|
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Total unrecognized compensation cost | $ 10.0 | ||
Weighted-average vesting period | 1 year 4 months | ||
Service period | 3 years | ||
Fair value per share of awards granted (usd per share) | $ 29.8 | $ 27.7 | $ 20.5 |
Total fair value of RSUs vested | $ 5.0 | $ 5.0 | $ 2.2 |
Minimum | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Percentage of awards originally granted | 0.00% | ||
Maximum | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Percentage of awards originally granted | 150.00% |