Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Nov. 02, 2019
Nov. 03, 2018
Nov. 02, 2019
Nov. 03, 2018
Income Taxes        
Effective income tax rate (as a percent) 0.90% 26.50% 18.70% 21.50%
Release of state valuation allowances $ (5.9)   $ (5.4)