Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Feb. 28, 2025	Feb. 29, 2024
Numerator:
Net income	$ 109,557	$ 138,665
Less: Distributed earnings allocated to participating securities	(113)	(117)
Less: Undistributed earnings allocated to participating securities	(567)	(937)
Numerator for basic earnings per share	108,877	137,611
Add: Undistributed earnings allocated to participating securities	567	937
Less: Undistributed earnings reallocated to participating securities	(555)	(909)
Numerator for diluted earnings per share	$ 108,889	$ 137,639
Denominator:
Weighted average shares outstanding — basic (in shares)	71,537	75,894
Effect of dilutive securities: Share-based payments (in shares)	1,475	2,370
Weighted average shares outstanding — diluted (in shares)	73,012	78,264
Basic earnings per share (in dollars per share)	$ 1.52	$ 1.81
Diluted earnings per share (in dollars per share)	$ 1.49	$ 1.76
Antidilutive securities excluded from computation of earnings per share (in shares)	0	0