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Composition Of Certain Financial Statement Captions (Schedule Of Prepaid Expenses And Other Current Assets) (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Sep. 30, 2022
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Composition Of Certain Financial Statement Captions [Abstract] |  |
Prepaid expenses | $ 25,539 | $ 26,851
Other current assets | 28,314 | 23,224
Total prepaid expenses and other current assets | $ 53,853 | $ 50,075

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