Summary Of Significant Accounting Policies (Repurchase of Company's Common Stock) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023
Class A Common Stock
Class of Stock [Line Items]
Shares repurchased (in shares)	11,942,725	7,499,660
Total purchase price	$ 1,906,049	$ 851,502
Average price per share (in usd per share)	$ 159.60	$ 113.54
Class B Common Stock
Class of Stock [Line Items]
Shares repurchased (in shares)	1,612,501	2,500,340
Total purchase price	$ 243,860	$ 248,835
Average price per share (in usd per share)	$ 151.23	$ 99.52