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Shareholders' Equity (Schedule Of Purchases Of Common Stock) (Details) $ in Millions	12 Months Ended
	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

Name:	us-gaap_EquityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration