Stock-Based Compensation (Summary of Status of Restricted Stock Units) (Details) - Restricted Stock Units (RSUs) shares in Thousands	12 Months Ended
	Nov. 30, 2020 $ / shares shares
Number of Shares
Beginning balance (in shares) | shares	829
Granted (in shares) | shares	538
Issued (in shares) | shares	(416)
Canceled (in shares) | shares	(155)
Ending balance (in shares) | shares	796
Weighted Average Fair Value
Beginning of year (in dollars per share) | $ / shares	$ 38.15
Granted (in dollars per share) | $ / shares	43.80
Issued (in dollars per share) | $ / shares	36.20
Canceled (in dollars per share) | $ / shares	39.96
End of year (in dollars per share) | $ / shares	$ 42.65