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Other liabilities - non-current - Summary of Other Liabilities (Details) - USD ($)
$ in Millions
Feb. 01, 2020
Feb. 03, 2019
Feb. 02, 2019
Other Liabilities Disclosure [Abstract]      
Straight-line rent $ 0.0   $ 95.1
Deferred compensation 31.0   30.4
Warranty reserve 25.7   23.2
Other liabilities 59.9   75.4
Total other liabilities $ 116.6 $ 122.0 $ 224.1