XML 89 R63.htm IDEA: XBRL DOCUMENT v3.24.1.1.u2
Retirement Benefits - Summary of Change in Projected Benefit Obligations and Change in Fair Value of Plan Assets (Detail) - USD ($)
 12 Months Ended
Apr. 30, 2024
Apr. 30, 2023
Retirement Benefits [Abstract]    
Accumulated Benefit Obligation, April 30 $ 0 $ 18,368,000
Change in Projected Benefit Obligations    
Projected benefit obligations, beginning of year 18,368,000 20,022,000
Interest cost 890,000 845,000
Actuarial gain (loss) 53,000 (1,113,000)
Actual benefits paid (1,558,000) (1,386,000)
Transfer to insurer (17,753,000) 0
Projected benefit obligations, end of year 0 18,368,000
Change in Plan Assets    
Fair value of plan assets, beginning of year 17,732,000 18,867,000
Actual return on plan assets 1,292,000 251,000
Employer contributions 287,000 0
Transfer to insurer (17,753,000) 0
Actual benefits paid (1,558,000) (1,386,000)
Fair value of plan assets, end of year 0 17,732,000
Funded status—under 0 (636,000)
Amounts Recognized in the Consolidated Balance Sheets consist of:    
Non-current liabilities 0 (636,000)
Amounts Recognized in Accumulated Other Comprehensive Income (Loss) Consist of:    
Net actual loss 0 4,526,000
Deferred tax benefit 0 (1,064,000)
After-tax actuarial loss $ 0 $ 3,462,000
Weighted-average Assumptions Used to Determine Benefit Obligations at April 30    
Discount rate   5.10%
Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost for Years Ended April 30    
Discount rate   5.10%
Expected long-term return on plan assets (as a percent)   7.75%