Schedule I (PARENT COMPANY ONLY) - Condensed Statements of Cash Flows (Parenthetical) (Details) - USD ($) $ in Thousands	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2021
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	$ 12,153,414	$ 8,526,363
Total cash, cash equivalents and restricted cash	13,165,612	9,830,758	$ 10,707,244	$ 11,828,304
Parent company
Condensed Cash Flow Statements, Captions [Line Items]
Cash and cash equivalents	1,862,275	2,455,437
Cash and securities segregated and on deposit for regulatory purposes or deposited with clearing and depository organizations	68,076	68,076
Total cash, cash equivalents and restricted cash	$ 1,930,351	$ 2,523,513	$ 2,469,146	$ 649,204