Share-Based Compensation Plans - Compensation Expense by Type of Award and Related Income Tax Benefit (Details) - USD ($) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Oct. 31, 2021 |
Oct. 31, 2020 |
Oct. 31, 2019 |
|
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Share-based compensation expense before income taxes | $ 33.5 | $ 20.3 | $ 17.5 |
Income tax benefit | (9.4) | (5.7) | (4.9) |
Share-based compensation expense, net of taxes | 24.1 | 14.6 | 12.5 |
RSUs | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Share-based compensation expense before income taxes | 17.6 | 11.5 | 9.5 |
Performance shares | |||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Share-based compensation expense before income taxes | $ 15.8 | $ 8.8 | $ 8.0 |