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Common Stock (Tables) | 6 Months Ended
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Apr. 30, 2020
Equity [Abstract] |
Schedule of Share Repurchase Activity | Repurchase Activity
|  | Three and Six Months Ended
(in millions, except per share amounts) |  | April 30, 2020
Total number of shares purchased |  | 0.2 |
Average price paid per share |  | $ | 36.16 |
Total cash paid for share repurchases |  | $ | 5.1 |

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