Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended
	May 02, 2020	May 04, 2019	Feb. 01, 2020
Income Tax [Line Items]
Income before income taxes	$ (72,053,000)	$ 26,156,000
Income tax (benefit) expense	$ (21,471,000)	$ 494,000
Effective tax rate	29.80%	1.90%
Accrual for uncertain tax, interest or penalties	$ 0	$ 0	$ 0
Minimum
Income Tax [Line Items]
State income taxes, statute of limitations period (years)	3 years
Maximum
Income Tax [Line Items]
State income taxes, statute of limitations period (years)	4 years