Share Based Plans - Stock option Activity (Detail) $ / shares in Units, $ in Thousands	12 Months Ended
	Aug. 31, 2024 USD ($) $ / shares shares
Share-Based Plans
Outstanding, Beginning balance, Number of Shares	1,027,588
Granted, Number of Shares	139,534
Exercised, Number of Shares	(209,829)
Forfeited/Cancelled, Number of Shares	(33,450)
Outstanding, Ending balance, Number of Shares	923,843
Exercisable, Number of Shares	589,743
Expected to vest, Number of Shares	321,772
Available for future grants, Number of Shares	722,644
Outstanding, Beginning balance, Weighted Average Exercise Price | $ / shares	$ 1,180.39
Granted, Weighted Average Exercise Price | $ / shares	2,577.52
Exercised, Weighted Average Exercise Price | $ / shares	799.06
Forfeited/Cancelled, Weighted Average Exercise Price | $ / shares	1,884.80
Outstanding, Ending balance, Weighted Average Exercise Price | $ / shares	1,452.52
Exercisable, Weighted Average Exercise Price | $ / shares	1,054.66
Expected to vest, Weighted Average Exercise Price | $ / shares	$ 2,148.75
Outstanding , Weighted-Average Remaining Contractual Term	5 years 11 months 15 days
Exercisable, Weighted-Average Remaining Contractual Term	4 years 8 months 23 days
Expected to vest, Weighted-Average Remaining Contractual Term	8 years 1 month 17 days
Outstanding, Aggregate Intrinsic Value | $	$ 1,597,289
Exercisable, Aggregate Intrinsic Value | $	1,254,276
Expected to vest, Aggregate Intrinsic Value | $	$ 332,305