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Shareholders' equity - Schedule of Dividends (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Apr. 29, 2023
Apr. 30, 2022
Class of Stock [Line Items]    
Common stock, dividends (usd per share) $ 0.23 $ 0.20
Dividends, common stock $ 10.4 $ 9.3
Dividends declared per preferred share (usd per share) $ 13.14 $ 13.14
Dividends, preferred stock $ 8.2 $ 8.2
Accrued expenses and other current liabilities | Common Stock    
Class of Stock [Line Items]    
Dividends payable 10.4 9.3
Accrued expenses and other current liabilities | Series A Redeemable Convertible Preferred Stock    
Class of Stock [Line Items]    
Dividends payable $ 8.2 $ 8.2