Related Party Transactions - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Aug. 02, 2019	Jul. 31, 2020	Aug. 02, 2019
Related Party Transaction [Line Items]
Charged under shared services agreement	$ 21,800,000	$ 25,146,000	$ 49,316,000	$ 48,784,000
Purchases of computer equipment from Dell			1,709,000	10,659,000
Revenues	138,476,000	136,605,000	279,657,000	269,447,000
Dell Inc.
Related Party Transaction [Line Items]
Performance bonds, outstanding	1,800,000		1,800,000
Dell Inc. | Principal Owner
Related Party Transaction [Line Items]
Charged under shared services agreement	1,000,000.0	2,200,000	2,000,000.0	4,100,000
Dell Inc. | Principal Owner | Contracts Not Yet Transferred
Related Party Transaction [Line Items]
Revenues	14,600,000	16,800,000	29,800,000	31,800,000
Dell Inc. | Principal Owner | Solutions Purchases
Related Party Transaction [Line Items]
Revenues	4,500,000	5,500,000	10,400,000	8,800,000
Dell Inc. | Chief Executive Officer
Related Party Transaction [Line Items]
Revenues	100,000	100,000	200,000	200,000
Dell and EMC | Principal Owner
Related Party Transaction [Line Items]
Purchases of computer equipment from Dell	200,000	1,200,000	500,000	2,600,000
EMC and VMware | Subsidiary of Common Parent
Related Party Transaction [Line Items]
Purchase of annual maintenance services	1,000,000.0	1,000,000.0	1,400,000	1,700,000
VMware | Subsidiary of Common Parent
Related Party Transaction [Line Items]
Revenues	100,000		200,000
Carbon Black Inc. | Subsidiary of Common Parent | Solutions Purchases
Related Party Transaction [Line Items]
Purchases of solutions from Carbon Black	1,500,000		3,100,000
RSA Security LLC and Pivotal Software, Inc. | Subsidiary of Common Parent
Related Party Transaction [Line Items]
Purchase of annual maintenance services	5,000	3,000	100,000	100,000
Revenues	$ 0	$ 11,000	$ 0	$ 38,000