Earnings Per Share (Basic and Diluted Loss Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2021
Numerator:
Net income	$ 590,177	$ 816,666	$ 564,746
Less: Distributed earnings allocated to participating securities	(413)	(268)	(253)
Less: Undistributed earnings allocated to participating securities	(3,861)	(3,904)	(2,366)
Numerator for basic earnings per share	585,903	812,494	562,127
Add: Undistributed earnings allocated to participating securities	3,861	3,904	2,366
Less: Undistributed earnings reallocated to participating securities	(3,744)	(3,796)	(2,286)
Numerator for diluted earnings per share	$ 586,020	$ 812,602	$ 562,207
Denominator:
Weighted average shares outstanding — basic (in shares)	80,842	86,861	90,401
Effect of dilutive securities: Share-based payments (in shares)	2,538	2,487	3,186
Weighted average shares outstanding — diluted (in shares)	83,380	89,348	93,587
Basic earnings per share (in dollars per share)	$ 7.25	$ 9.35	$ 6.22
Diluted earnings per share (in dollars per share)	$ 7.03	$ 9.09	$ 6.01
Antidilutive securities excluded from computation of earnings per share (in shares)	0	0	0