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Stock-Based Compensation - Additional Information (Details) $ / shares in Units, $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Oct. 31, 2019 USD ($) compensation_plan $ / shares shares | Oct. 31, 2018 USD ($) $ / shares shares | Oct. 31, 2017 USD ($) shares | Oct. 31, 2014 shares | May 12, 2017 shares | May 12, 2016 shares | May 12, 2015 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share based compensation, number of plans | compensation_plan | 2 |  |  |  |  |  |
Stock options granted (shares) | 0 | 0 | 0 |  |  |  |
Stock options exercised (shares) | 0 | 0 | 0 |  |  |  |
Number of shares forfeited | 0 | 0 | 0 |  |  |  |
Long-term incentive plan, requisite service period | 3 years |  |  |  |  |  |
Share based compensation expense | $ | $ 12.7 | $ 6.5 | $ 2.9 |  |  |  |
Long Term Incentive Plan Restricted Stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares of restricted stock (shares) | 291,520 |  |  |  |  |  |
Weighted average grant date fair value (usd per share) | $ / shares | $ 39.83 |  |  |  |  |  |
Share based compensation expense | $ | $ 11.6 | $ 5.3 | 1.7 |  |  |  |
2005 Outside Directors Equity Award Plan Restricted Stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Shares of restricted stock (shares) | 25,144 | 20,529 |  |  |  |  |
Weighted average grant date fair value (usd per share) | $ / shares | $ 42.95 | $ 59.18 |  |  |  |  |
Share based compensation expense | $ | $ 1.1 | $ 1.2 | $ 1.1 |  |  |  |
Class A Common Stock 2001 Plan | Officer |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share based compensation expense | $ | $ 0.1 | $ 0.1 |  |  |  |  |
Grants in the period (shares) | 9,000 |  |  | 15,000 |  |  |
Vesting installments (shares) |  |  |  |  | 5,000 | 5,000 | 5,000
Share-based Payment Arrangement, Tranche One | Class A Common Stock 2001 Plan | Officer |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting installments (shares) | 3,000 |  |  |  |  |  |
Share-based Payment Arrangement, Tranche Two | Class A Common Stock 2001 Plan | Officer |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting installments (shares) | 3,000 |  |  |  |  |  |
Share-based Payment Arrangement, Tranche Three | Class A Common Stock 2001 Plan | Officer |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting installments (shares) | 3,000 |  |  |  |  |  |

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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