Stockholders' Equity - Common Stock Outstanding (Details) - shares	3 Months Ended			6 Months Ended		15 Months Ended
	Feb. 28, 2025	Feb. 29, 2024	Nov. 30, 2023	Feb. 28, 2025	Feb. 29, 2024	Nov. 30, 2024
Common stock outstanding:
Common stock outstanding, beginning balances (in shares)				113,744,167
Treasury shares purchased (in shares)	(700,000)	(6,500,000)		(2,500,000)	(6,500,000)
Common stock outstanding, ending balance (in shares)	109,539,804			109,539,804
Common stock:
Common stock outstanding:
Common stock outstanding, beginning balances (in shares)	111,693,059	128,647,431	131,294,422	113,744,167	131,294,422	131,294,422
Shares issued under employee stock purchase plan (in shares)	355,851	338,316		355,851	338,316
Vesting of restricted stock (in shares)	6,419	2,741		1,089,031	1,769,516
Purchases of treasury stock under employee stock plans (in shares)	(991)	(795)		(323,991)	(526,823)
Treasury shares purchased (in shares)	(2,514,534)	(6,547,086)		(5,325,254)	(10,434,824)
Common stock outstanding, ending balance (in shares)	109,539,804	122,440,607	128,647,431	109,539,804	122,440,607	111,693,059