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Income Taxes (Narrative) (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Jun. 30, 2021
--- | --- | ---
Federal [Member] |  |
Income Tax Authority [Line Items] |  |
Prepaid income taxes | $ 3.9 | $ 5.1
State and Local [Member] |  |
Income Tax Authority [Line Items] |  |
Prepaid income taxes | $ 0.7 | $ 1.1

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