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Basis of Presentation of Consolidated Financial Statements And Significant Accounting Policies - Additional information (Detail) | 12 Months Ended
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Apr. 30, 2023 | Apr. 30, 2022 | Apr. 30, 2021
Digital solutions services—financial services [member] |  |  |
Disclosure of Basis of Preparation and Presentation of Financial Statements and Significant Accounting Policies [Line Items] |  |  |
Contract with customer credit period allowed to customers | 15 days |  |
Digital solutions services—non financial services [member] |  |  |
Disclosure of Basis of Preparation and Presentation of Financial Statements and Significant Accounting Policies [Line Items] |  |  |
Weighted average contract term | 23 months 27 days | 25 months 15 days | 24 months 9 days
Digital solutions services—non financial services [member] | Bottom of range [member] |  |  |
Disclosure of Basis of Preparation and Presentation of Financial Statements and Significant Accounting Policies [Line Items] |  |  |
Contract with customer credit period allowed to customers | 0 days |  |
Term of contract | 1 year | 1 year | 1 year
Digital solutions services—non financial services [member] | Top of range [member] |  |  |
Disclosure of Basis of Preparation and Presentation of Financial Statements and Significant Accounting Policies [Line Items] |  |  |
Contract with customer credit period allowed to customers | 90 days |  |
Term of contract | 3 years | 3 years | 3 years

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