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Marketable Securities Schedule of Available-for-sale Securities (Details) | 3 Months Ended
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Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items] |
Document Period End Date | Dec. 31, 2021

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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is YYYY-MM-DD. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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