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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) – UNAUDITED (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2024 | Oct. 31, 2023
Other comprehensive income (loss): |  |  |  |
Unrealized retirement credits, tax benefit | $ (463) | $ (2,796) | $ 166 | $ (2,412)
Unrealized (loss) gains on interest rate swaps, tax benefit (expense) | $ 392 | $ 331 | $ 392 | $ (532)

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- Definition Amount, after reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness, attributable to parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-12 + Details
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