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New Accounting Pronouncements (Details) - USD ($) $ in Thousands | Apr. 30, 2020 | Aug. 01, 2019 | Jul. 31, 2019
--- | --- | --- | ---
Accounting Policies [Abstract] |  |  |
Operating Lease, Right-of-Use Asset | $ 41,553 | $ 55,984 | $ 0
Operating Lease, Liability | $ 46,729 | $ 58,544 |

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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977 + Details
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