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Accumulated Other Comprehensive Loss - Reclassification out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2024 | Oct. 31, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Cumulative translation adjustments | $ (23,520) | $ 925 | $ (23,741) | $ 1,615
Pension expense | 2,127 | 1,582 | 4,493 | 3,175
Wiley Edge And Cross Knowledge |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Cumulative translation adjustments | (23,200) |  | (23,200) |
Reclassification out of Accumulated Other Comprehensive Loss |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Pension expense | $ 2,000 | $ 2,000 | $ 4,100 | $ 3,900

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