Earnings Per Share (Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Feb. 29, 2024	Feb. 28, 2023
Numerator:
Net income	$ 138,665	$ 125,500
Less: Distributed earnings allocated to participating securities	(117)	(87)
Less: Undistributed earnings allocated to participating securities	(937)	(777)
Numerator for basic earnings per share	137,611	124,636
Add: Undistributed earnings allocated to participating securities	937	777
Less: Undistributed earnings reallocated to participating securities	(909)	(754)
Numerator for diluted earnings per share	$ 137,639	$ 124,659
Denominator:
Weighted average shares outstanding — basic (in shares)	75,894	83,468
Effect of dilutive securities: Share-based payments (in shares)	2,370	2,527
Weighted average shares outstanding — diluted (in shares)	78,264	85,995
Basic earnings per share (in dollars per share)	$ 1.81	$ 1.49
Diluted earnings per share (in dollars per share)	$ 1.76	$ 1.45
Antidilutive securities excluded from computation of earnings per share (in shares)	0	0