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v3.21.2

Retirement Plans, Expected Employer Contributions and Benefit Payments and Other Retirement Plans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Apr. 30, 2021 | Apr. 30, 2020 | Apr. 30, 2019
Defined Benefit Plan Disclosure [Line Items] |  |  |
Expected employer contributions to the defined benefit pension plans | $ 16,800 |  |
Expected future benefit payments [Abstract] |  |  |
2022 | 27,516 |  |
2023 | 27,215 |  |
2024 | 28,199 |  |
2025 | 29,841 |  |
2026 | 29,068 |  |
2027-2031 | 158,879 |  |
Total | 300,718 |  |
Defined Contribution Savings Plans [Abstract] |  |  |
Expense recorded | 24,300 | $ 19,000 | $ 13,100
US [Member] |  |  |
Expected future benefit payments [Abstract] |  |  |
2022 | 15,305 |  |
2023 | 15,446 |  |
2024 | 15,593 |  |
2025 | 15,024 |  |
2026 | 15,064 |  |
2027-2031 | 75,870 |  |
Total | 152,302 |  |
Other postretirement benefits [Abstract] |  |  |
Annual (credits) expenses for benefit plans | 882 | (542) | 113
Non-US [Member] |  |  |
Expected future benefit payments [Abstract] |  |  |
2022 | 12,211 |  |
2023 | 11,769 |  |
2024 | 12,606 |  |
2025 | 14,817 |  |
2026 | 14,004 |  |
2027-2031 | 83,009 |  |
Total | 148,416 |  |
Other postretirement benefits [Abstract] |  |  |
Annual (credits) expenses for benefit plans | (12,100) | (7,256) | (7,893)
Non-US [Member] | Minimum [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Expected employer contributions to the defined benefit pension plans | 13,100 |  |
Postretirement Life Insurance and Health Care Benefits [Member] |  |  |
Other postretirement benefits [Abstract] |  |  |
Accumulated post-retirement benefit obligation | 1,500 | 1,400 |
Annual (credits) expenses for benefit plans | $ (100) | $ (100) | $ (100)

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