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Pension Benefits (Schedule Of Funded Status) (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Jun. 30, 2020
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Defined Benefit Pension Plans [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Funded status - net prepaid (accrued) benefit cost | $ 1,980 | $ (3,201)

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