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Employee Benefit and Retirement Plans (Narrative) (Details) - USD ($) $ in Thousands |  |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Feb. 01, 2024 | Jan. 31, 2024 | Jan. 01, 2024 | Apr. 30, 2024 | Jan. 31, 2024 | Apr. 30, 2024 | Apr. 30, 2023 | Apr. 30, 2022
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |
Percent of after tax earnings contributed in profit sharing |  |  |  | 3.00% | 5.00% |  |  |
Recognized expenses for profit-sharing contributions |  |  |  |  |  | $ 5,300 | $ 4,700 | $ 800
401(k) contributions, percent match of employee's annual contribution |  |  |  |  |  |  |  | 100.00%
Effective maximum contribution of base earnings |  |  | 4.00% |  |  |  |  | 4.00%
Accumulated other comprehensive loss, net of tax |  |  |  | $ (7,318) |  | (7,318) | (10,372) |
Defined Contribution Plan, Additional Employer Matching Contribution, Percent |  |  | 50.00% |  |  |  |  |
Defined Contribution Plan, Additional Employer Matching Contribution, Percent Employees' Of Gross Pay |  |  | 2.00% |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |
Percent of after tax earnings contributed in profit sharing |  | 0.00% |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |
Percent of after tax earnings contributed in profit sharing | 3.00% | 5.00% |  |  |  |  |  |
Effective maximum contribution of base earnings |  |  | 5.00% |  |  |  |  |
401(k) Plan [Member] | Other Postretirement Benefits Plan [Member] |  |  |  |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |  |  |  |
Expense for 401(k) matching contributions |  |  |  |  |  | $ 12,900 | $ 12,400 | $ 11,700

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- Definition Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-14A Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (i-k) -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-10A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (j) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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