v3.26.3
Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Aug. 31, 2025
Nov. 30, 2025
Aug. 31, 2026
Feb. 28, 2026
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]        
Total gross costs - intangible assets   $ 422,534 $ 280,620  
Assets Acquired - finite-lived intangible assets   721    
Accumulated amortization - finite lived intangible assets   (220,678) (171,639)  
Total net carrying amount - intangible assets   202,577 108,981  
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   8,717 8,712  
Assets Acquired - indefinite-lived intangible assets $ 0      
Net carrying amount - indefinite lived intangible assets   8,717 8,712  
Customer relationships        
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]        
Gross costs - finite lived intangible assets   166,328 127,686  
Assets Acquired - finite-lived intangible assets 622      
Accumulated amortization - finite lived intangible assets   (116,810) (107,275)  
Net carrying amount - finite lived intangible assets   $ 50,140 $ 20,411  
Weighted Average Remaining Lives (Years)   4 years 7 months 6 days 4 years 6 months  
Trademarks and trade names        
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]        
Gross costs - finite lived intangible assets   $ 160,674 $ 129,066  
Assets Acquired - finite-lived intangible assets 0      
Accumulated amortization - finite lived intangible assets   (55,948) (49,839)  
Net carrying amount - finite lived intangible assets   $ 104,726 $ 79,227  
Weighted Average Remaining Lives (Years)   20 years 7 months 6 days 21 years 6 months  
Other        
Schedule of Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]        
Gross costs - finite lived intangible assets   $ 86,815 $ 15,156  
Assets Acquired - finite-lived intangible assets $ 99      
Accumulated amortization - finite lived intangible assets   (47,920) (14,525)  
Net carrying amount - finite lived intangible assets   $ 38,994 $ 631  
Weighted Average Remaining Lives (Years)   2 years 9 months 18 days 2 years