Leases - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 30, 2020	Nov. 01, 2019	Oct. 30, 2020	Nov. 01, 2019
Lessee, Lease, Description [Line Items]
Variable lease cost	$ 0.2	$ 0.5	$ 0.5	$ 1.2
Short-term lease cost	0.1	0.3	1.0	0.9
Operating lease payments	$ 1.5	1.8	$ 3.3	5.2
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 month		1 month
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	6 years 2 months 12 days		6 years 2 months 12 days
Leased Facilities
Lessee, Lease, Description [Line Items]
Operating lease costs	$ 1.5	1.5	$ 4.6	5.5
Leased Equipment
Lessee, Lease, Description [Line Items]
Operating lease costs	$ 0.1	$ 0.2	$ 1.2	$ 0.9