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v3.22.2

Retirement Plans, Components of Net Pension Expense (Income) and Weighted-Average Assumptions (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Apr. 30, 2022 | Apr. 30, 2021 | Apr. 30, 2020
Retirement Indemnity Plan for the Employees of Cross Knowledge [Member] | Maximum [Member] |  |  |
Weighted-average assumptions [Abstract] |  |  |
Curtailment credit | $ 100 |  |
US [Member] |  |  |
Components of net pension income for defined benefit plans [Abstract] |  |  |
Service cost | 0 | $ 0 | $ 0
Interest cost | 9,451 | 9,504 | 11,247
Expected return on plan assets | (12,144) | (11,969) | (14,038)
Amortization of prior service cost | (154) | (154) | (154)
Amortization of net actuarial loss | 2,617 | 3,501 | 2,403
Curtailment (credit)/settlement loss | 0 | 0 | 0
Net pension (income) expense | $ (230) | $ 882 | $ (542)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax
Weighted-average assumptions [Abstract] |  |  |
Discount rate | 3.20% | 3.10% | 4.10%
Expected return on plan assets | 5.30% | 5.80% | 6.80%
Non-US [Member] |  |  |
Components of net pension income for defined benefit plans [Abstract] |  |  |
Service cost | $ 1,196 | $ 1,396 | $ 1,851
Interest cost | 11,148 | 8,901 | 12,652
Expected return on plan assets | (28,118) | (26,971) | (26,116)
Amortization of prior service cost | 67 | 58 | 73
Amortization of net actuarial loss | 4,846 | 4,516 | 3,993
Curtailment (credit)/settlement loss | (39) | 0 | 291
Net pension (income) expense | $ (10,900) | $ (12,100) | $ (7,256)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax | Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax
Weighted-average assumptions [Abstract] |  |  |
Discount rate | 1.90% | 1.60% | 2.40%
Rate of compensation increase | 3.00% | 3.00% | 3.00%
Expected return on plan assets | 5.50% | 5.70% | 6.50%
Canada [Member] |  |  |
Weighted-average assumptions [Abstract] |  |  |
Retirement plans settlement charges for employees |  |  | $ 300

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