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Shareholders' Equity (Schedule Of Purchases Of Common Stock) (Details) $ in Millions | 12 Months Ended
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Aug. 31, 2022 USD ($)
Shareholders' Equity [Abstract] |
Shares withheld for taxes on stock-based compensation awards | $ 3.5

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- Definition Shares Paid for Tax Withholding for Share Based Compensation, Value + References No definition available. + Details
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Namespace Prefix: | fc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration