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Notes Payable, Net - Principal Payments on Notes Payable (Parenthetical) (Detail) $ in Millions	12 Months Ended
	Aug. 31, 2024 USD ($)
2028 Convertible Senior Notes
Debt Instrument [Line Items]
Debt instrument redemption description	The repayment of the $373.8 million of 2028 Convertible Notes due April 2028 is assumed to occur at the scheduled maturity instead of assuming an earlier conversion by the holders.
April 2028 Convertible Senior Notes
Debt Instrument [Line Items]
Convertible senior notes	$ 373.8

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Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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