Summary Of Significant Accounting Policies (Repurchase of Company's Common Stock) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Nov. 30, 2022	Nov. 30, 2021
Class A Common Stock
Class of Stock [Line Items]
Shares repurchased (in shares)	9,628,203	13,910,000
Total purchase price	$ 868,788	$ 1,357,081
Average price per share (in usd per share)	$ 90.23	$ 97.56
Class B Common Stock
Class of Stock [Line Items]
Shares repurchased (in shares)	1,339,797	100,000
Total purchase price	$ 98,613	$ 8,197
Average price per share (in usd per share)	$ 73.60	$ 81.97