Income and Other Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Aug. 02, 2019	Jul. 31, 2020	Aug. 02, 2019	Jan. 31, 2020
Valuation Allowance [Line Items]
Effective tax rate	58.10%	21.70%	31.00%	32.10%
Expense relating to vesting of equity awards	$ 700	$ 100	$ 400	$ 2,100
Loss carryforwards	4,600		4,600		$ 4,600
Loss before income taxes	2,927	13,096	12,703	27,300
Income tax benefit	1,700	2,836	3,940	8,770
Net loss	1,227	$ 10,260	8,763	$ 18,530
Unrecognized tax benefits	6,300		6,300		6,600
Principal Owner | Dell Inc.
Valuation Allowance [Line Items]
Net operating loss tax sharing receivable under agreement with Dell	$ 9,912		9,912		$ 10,000
Prepared using separate return method
Valuation Allowance [Line Items]
Loss before income taxes			12,700
Income tax benefit			2,500
Net loss			$ 10,200