XML 107 R90.htm IDEA: XBRL DOCUMENT v3.19.2
Warranty reserve - Warranty Reserve Rollforward (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Aug. 03, 2019
Aug. 04, 2018
Aug. 03, 2019
Aug. 04, 2018
Movement in Standard Product Warranty Accrual [Roll Forward]        
Balance at beginning of period $ 33.8 $ 35.6 $ 33.2 $ 37.2
Warranty expense 2.5 4.0 6.0 5.4
Utilized (2.2) (3.2) (5.1) (6.2)
Balance at end of period $ 34.1 $ 36.4 $ 34.1 $ 36.4