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Basis of Presentation and Consolidation and Accounting Standards Adopted (Details)
$ / shares in Units, $ in Millions
3 Months Ended
Nov. 07, 2023
Oct. 31, 2022
USD ($)
Dec. 31, 2023
USD ($)
country
client
$ / shares
Dec. 31, 2022
USD ($)
Sep. 30, 2023
$ / shares
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Number of countries over entity operates (more than) | country     180    
Number of commercial and institutional clients (more than) | client     54,000    
Number retail clients (over) | client     400,000    
Stock split, conversion ratio 1.5        
Common stock - par value (in dollar per share) | $ / shares     $ 0.01   $ 0.01
Gain on acquisition     $ 0.0 $ 23.5  
Cotton Distributors Inc.          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Fair value of identifiable net assets acquired   $ 66.2      
Purchase price   $ 42.7      
Gain on acquisition       $ 23.5  
Retail Segment          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]          
Number of countries over entity operates (more than) | country     180