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Accumulated Other Comprehensive Loss - Reclassification out of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands | 12 Months Ended
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Apr. 30, 2026 | Apr. 30, 2025 | Apr. 30, 2024
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Cumulative translation adjustments | $ (7,423) | $ (25,749) | $ 3,417
Wiley Edge And Cross Knowledge |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Cumulative translation adjustments |  | (23,200) |
Reclassification out of Accumulated Other Comprehensive Income |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Pension expense | $ 8,600 | $ 8,100 | $ 7,900

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