Comprehensive Income (Loss) - Changes in Each Component of Accumulated Other Comprehensive Loss (Parenthetical) (Detail) - USD ($) $ in Millions |
3 Months Ended | |
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Jul. 31, 2021 |
Jul. 31, 2020 |
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| Deferred Compensation and Pension Plan | ||
| Accumulated Other Comprehensive Income Loss [Line Items] | ||
| Tax effect on reclassification of realized net losses | $ 0.1 | $ 0.2 |
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- Definition 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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| X | ||||||||||
- Definition Amount of tax (expense) benefit for reclassification adjustment from accumulated other comprehensive (income) loss of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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