Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	May 01, 2021	Jan. 30, 2021	Oct. 31, 2020	Aug. 01, 2020	May 02, 2020	Feb. 01, 2020	Oct. 26, 2019	Jul. 27, 2019	May 01, 2021	May 02, 2020	Apr. 27, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 301.0	$ 295.3	$ 300.8	$ 190.9	$ 210.6	$ 285.9	$ 257.2	$ 270.2	$ 1,088.0	$ 1,023.9	$ 1,000.3
Goods Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Net sales									1,054.4	987.2
Goods Transferred Over Time
Disaggregation of Revenue [Line Items]
Net sales									33.6	36.7
North America
Disaggregation of Revenue [Line Items]
Net sales									613.0	655.7
Europe & Africa
Disaggregation of Revenue [Line Items]
Net sales									280.5	250.8
Asia
Disaggregation of Revenue [Line Items]
Net sales									194.5	117.4
Automotive
Disaggregation of Revenue [Line Items]
Net sales									755.7	712.1	734.7
Automotive | Goods Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Net sales									722.1	675.4
Automotive | Goods Transferred Over Time
Disaggregation of Revenue [Line Items]
Net sales									33.6	36.7
Automotive | North America
Disaggregation of Revenue [Line Items]
Net sales									406.4	435.6
Automotive | Europe & Africa
Disaggregation of Revenue [Line Items]
Net sales									212.3	202.1
Automotive | Asia
Disaggregation of Revenue [Line Items]
Net sales									137.0	74.4
Industrial
Disaggregation of Revenue [Line Items]
Net sales									267.9	251.4	206.8
Industrial | Goods Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Net sales									267.9	251.4
Industrial | Goods Transferred Over Time
Disaggregation of Revenue [Line Items]
Net sales									0.0	0.0
Industrial | North America
Disaggregation of Revenue [Line Items]
Net sales									142.9	160.6
Industrial | Europe & Africa
Disaggregation of Revenue [Line Items]
Net sales									68.2	48.4
Industrial | Asia
Disaggregation of Revenue [Line Items]
Net sales									56.8	42.4
Interface
Disaggregation of Revenue [Line Items]
Net sales									61.6	58.8	57.7
Interface | Goods Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Net sales									61.6	58.8
Interface | Goods Transferred Over Time
Disaggregation of Revenue [Line Items]
Net sales									0.0	0.0
Interface | North America
Disaggregation of Revenue [Line Items]
Net sales									61.0	57.9
Interface | Europe & Africa
Disaggregation of Revenue [Line Items]
Net sales									0.0	0.3
Interface | Asia
Disaggregation of Revenue [Line Items]
Net sales									0.6	0.6
Medical
Disaggregation of Revenue [Line Items]
Net sales									2.8	1.6	$ 1.1
Medical | Goods Transferred at a Point in Time
Disaggregation of Revenue [Line Items]
Net sales									2.8	1.6
Medical | Goods Transferred Over Time
Disaggregation of Revenue [Line Items]
Net sales									0.0	0.0
Medical | North America
Disaggregation of Revenue [Line Items]
Net sales									2.7	1.6
Medical | Europe & Africa
Disaggregation of Revenue [Line Items]
Net sales									0.0	0.0
Medical | Asia
Disaggregation of Revenue [Line Items]
Net sales									$ 0.1	$ 0.0