Stockholders' Equity - Summary of Activity for Unvested RSUs and PSUs (Parenthetical) (Detail) - shares	3 Months Ended
Jul. 31, 2022	Jul. 31, 2021
Market Condition PSUs [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
PSU Vested	28,800	43,200

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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