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Property and Equipment, Net - Summary of Property and Equipment (Parenthetical) (Detail) - USD ($) | 12 Months Ended
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Apr. 30, 2022 | Apr. 30, 2021 | Apr. 30, 2020
Property Plant And Equipment [Abstract] |  |  |
Depreciation expense for capitalized software | $ 28,000,000.0 | $ 25,400,000 | $ 18,800,000
Net book value of capitalized software | $ 94,700,000 | $ 85,600,000 |

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- Definition Amount of expense for amortization of capitalized computer software costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128487-111756 + Details
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Period Type: | duration

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- Definition The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 + Details
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Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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