Earnings Per Share (Basic and Diluted Loss Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2022
Numerator:
Net income	$ 655,018	$ 590,177	$ 816,666
Less: Distributed earnings allocated to participating securities	(527)	(413)	(268)
Less: Undistributed earnings allocated to participating securities	(4,301)	(3,861)	(3,904)
Numerator for basic earnings per share	650,190	585,903	812,494
Add: Undistributed earnings allocated to participating securities	4,301	3,861	3,904
Less: Undistributed earnings reallocated to participating securities	(4,179)	(3,744)	(3,796)
Numerator for diluted earnings per share	$ 650,312	$ 586,020	$ 812,602
Denominator:
Weighted average shares outstanding — basic (in shares)	74,753	80,842	86,861
Effect of dilutive securities: Share-based payments (in shares)	2,202	2,538	2,487
Weighted average shares outstanding — diluted (in shares)	76,955	83,380	89,348
Basic earnings per share (in dollars per share)	$ 8.70	$ 7.25	$ 9.35
Diluted earnings per share (in dollars per share)	$ 8.45	$ 7.03	$ 9.09
Antidilutive securities excluded from computation of earnings per share (in shares)	0	0	0