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Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Feb. 28, 2025 | May 31, 2025 | Feb. 28, 2026 | Nov. 30, 2025
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Total gross costs - intangible assets |  |  | $ 280,537 | $ 422,534
Assets Acquired - finite-lived intangible assets |  | $ 721 |  |
Accumulated amortization - finite lived intangible assets |  |  | (167,317) | (220,678)
Total net carrying amount - intangible assets |  |  | 113,220 | 202,577
Discontinued Operations, Held-for-Sale |  |  |  |
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Intangible assets |  |  | 82,700 |
Exchange and clearing organization membership interests and registrations |  |  |  |
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Gross costs - indefinite lived intangible assets |  |  | 8,735 | 8,717
Assets Acquired - indefinite-lived intangible assets | $ 0 |  |  |
Net carrying amount - indefinite lived intangible assets |  |  | 8,735 | 8,717
Customer relationships |  |  |  |
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Gross costs - finite lived intangible assets |  |  | 127,693 | 166,328
Assets Acquired - finite-lived intangible assets | 622 |  |  |
Accumulated amortization - finite lived intangible assets |  |  | (104,980) | (116,810)
Net carrying amount - finite lived intangible assets |  |  | $ 22,713 | $ 50,140
Weighted Average Remaining Lives (Years) |  |  | 5 years | 4 years 7 months 6 days
Trademarks and trade names |  |  |  |
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Gross costs - finite lived intangible assets |  |  | $ 128,981 | $ 160,674
Assets Acquired - finite-lived intangible assets | 0 |  |  |
Accumulated amortization - finite lived intangible assets |  |  | (47,963) | (55,948)
Net carrying amount - finite lived intangible assets |  |  | $ 81,018 | $ 104,726
Weighted Average Remaining Lives (Years) |  |  | 22 years | 20 years 7 months 6 days
Other |  |  |  |
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |  |
Gross costs - finite lived intangible assets |  |  | $ 15,128 | $ 86,815
Assets Acquired - finite-lived intangible assets | $ 99 |  |  |
Accumulated amortization - finite lived intangible assets |  |  | (14,374) | (47,920)
Net carrying amount - finite lived intangible assets |  |  | $ 754 | $ 38,994
Weighted Average Remaining Lives (Years) |  |  | 2 years 6 months | 2 years 9 months 18 days

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