XML 155 R87.htm IDEA: XBRL DOCUMENT v3.20.1
Redeemable preferred shares - Redeemable Preferred Shares (Details) - Series A Redeemable Convertible Preferred Stock
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Feb. 01, 2020
USD ($)
$ / shares
shares
Feb. 02, 2019
USD ($)
$ / shares
shares
Temporary Equity [Line Items]    
Conversion rate 12.2297 11.3660
Conversion price (in usd per share) | $ / shares $ 81.7682 $ 87.9817
Potential impact of preferred shares if-converted to common shares (in shares) | shares 7.6 7.1
Liquidation preference | $ $ 632.8 $ 632.8