Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands |
Apr. 30, 2020 |
Nov. 01, 2019 |
Oct. 31, 2019 |
[1] | ||
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Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | ||||||
Operating lease right-of-use assets, net | $ 462,778 | $ 0 | ||||
Operating lease, liability | $ 534,559 | |||||
Accounting Standards Update 2016-02 | ||||||
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] | ||||||
Operating lease right-of-use assets, net | $ 475,000 | |||||
Operating lease, liability | $ 540,000 | |||||
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