Income and Other Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 30, 2020	Nov. 01, 2019	Oct. 30, 2020	Nov. 01, 2019	Jan. 31, 2020
Valuation Allowance [Line Items]
Effective tax rate	27.50%	30.60%	30.00%	31.70%
Expense relating to vesting of equity awards	$ 300	$ 500	$ 800	$ 2,600
Loss carryforwards	4,600		4,600		$ 4,600
Loss before income taxes	4,977	11,392	17,680	38,692
Income tax benefit	1,369	3,484	5,309	12,254
Net loss	3,608	$ 7,908	12,371	$ 26,438
Unrecognized tax benefits	6,400		6,400		6,600
Principal Owner | Dell Inc.
Valuation Allowance [Line Items]
Net operating loss tax sharing receivable under agreement with Dell	$ 8,800		8,800		$ 10,000
Prepared using separate return method
Valuation Allowance [Line Items]
Loss before income taxes			17,700
Income tax benefit			3,700
Net loss			$ 14,000