v3.26.1
Redeemable preferred shares - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
6 Months Ended 9 Months Ended 12 Months Ended
Apr. 15, 2024
Apr. 01, 2024
Oct. 05, 2016
Nov. 02, 2024
Nov. 02, 2024
Jan. 31, 2026
Feb. 01, 2025
Feb. 03, 2024
Mar. 30, 2024
Temporary Equity [Line Items]                  
Payments for Repurchase of Redeemable Convertible Preferred Stock           $ 0.0 $ 813.8 $ 0.0  
Payments of Ordinary Dividends, Preferred Stock and Preference Stock           $ 0.0 18.5 $ 32.9  
Preferred Stock Redemption Premium             $ 71.8    
Series A Redeemable Convertible Preferred Stock                  
Temporary Equity [Line Items]                  
Redeemable convertible preferred stock, shares issued (in shares)     625,000            
Preferred stock, purchase price     $ 625.0            
Shares issued, price per share (in usd per share)     $ 1,000            
Temporary Equity, Redemption Price Per Share                 $ 1,050.94
Stock Redeemed or Called During Period, Shares   312,500   312,500          
Payments for Repurchase of Redeemable Convertible Preferred Stock $ 414.1     $ 401.5          
Payments of Ordinary Dividends, Preferred Stock and Preference Stock 2.1                
Preferred Stock Redemption Premium $ 83.6     $ 71.8          
Professional Fees         $ 1.6        
Payments of stock issuance costs     $ 13.7