Earnings Per Share (Calculation of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2019
Earnings Per Share [Abstract]
Net income	$ 78,420	$ 79,722	$ 26,400
Weighted average shares outstanding (in shares)	43,916	44,886	44,791
Dilutive impact from common stock equivalents (in shares)	704	435	549
Diluted weighted average shares outstanding (in shares)	44,620	45,321	45,340
Basic earnings per share (in dollars per share)	$ 1.79	$ 1.78	$ 0.59
Diluted earnings per share (in dollars per share)	$ 1.76	$ 1.76	$ 0.58