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Consolidated Statements Of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021
Statement of Stockholders' Equity [Abstract] |  |  |
Tax effect included in net pension and postretirement benefit gains (losses) | $ 550 | $ (890) | $ 1,164
Common stock, dividends per share (in dollars per share) | $ 3.35 | $ 3.15 | $ 2.95

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