Segment Information and Geographic Area Information - Schedule of Segment Reporting Information, by Segment (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
Segment Reporting Information [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
Income/(loss) from operations									127.9	147.1	106.8
Interest expense, net									5.2	10.1	8.3
Other income, net									(12.2)	(11.7)	(5.1)
Income before Income Taxes									134.9	148.7	103.6
Purchases of property, plant and equipment									24.9	45.1	49.8
Depreciation and amortization									51.5	48.3	43.3
Identifiable assets	1,467.0				1,370.6				1,467.0	1,370.6	1,231.7
Operating Segments
Segment Reporting Information [Line Items]
Net sales									1,088.0	1,023.9	1,000.3
Transfers between Segments
Segment Reporting Information [Line Items]
Net sales									0.0	0.0	0.0
Automotive
Segment Reporting Information [Line Items]
Net sales									755.7	712.1	734.7
Income/(loss) from operations									107.6	124.4	126.3
Interest expense, net									0.0		0.0
Other income, net									0.0		0.0
Income before Income Taxes									0.0		0.0
Purchases of property, plant and equipment									22.5	37.5	38.9
Depreciation and amortization									34.3	31.0	25.2
Identifiable assets	739.5				670.9				739.5	670.9	677.4
Automotive | Operating Segments
Segment Reporting Information [Line Items]
Net sales									761.8	716.8	741.6
Automotive | Transfers between Segments
Segment Reporting Information [Line Items]
Net sales									(6.1)	(4.7)	(6.9)
Industrial
Segment Reporting Information [Line Items]
Net sales									267.9	251.4	206.8
Income/(loss) from operations									64.3	59.4	37.4
Interest expense, net									0.0		0.0
Other income, net									0.0		0.0
Income before Income Taxes									0.0		0.0
Purchases of property, plant and equipment									2.1	5.7	2.6
Depreciation and amortization									14.3	13.7	11.7
Identifiable assets	461.6				421.8				461.6	421.8	404.3
Industrial | Operating Segments
Segment Reporting Information [Line Items]
Net sales									273.2	253.9	210.0
Industrial | Transfers between Segments
Segment Reporting Information [Line Items]
Net sales									(5.3)	(2.5)	(3.2)
Interface
Segment Reporting Information [Line Items]
Net sales									61.6	58.8	57.7
Income/(loss) from operations									8.9	5.6	(0.3)
Interest expense, net									0.0		0.0
Other income, net									0.0		0.0
Income before Income Taxes									0.0		0.0
Purchases of property, plant and equipment									0.0	0.3	0.5
Depreciation and amortization									0.3	0.9	3.2
Identifiable assets	90.4				71.0				90.4	71.0	88.6
Interface | Operating Segments
Segment Reporting Information [Line Items]
Net sales									61.6	58.9	57.9
Interface | Transfers between Segments
Segment Reporting Information [Line Items]
Net sales									0.0	(0.1)	(0.2)
Medical
Segment Reporting Information [Line Items]
Net sales									2.8	1.6	1.1
Income/(loss) from operations									(4.6)	(6.0)	(8.6)
Interest expense, net									0.0		0.0
Other income, net									0.0		0.0
Income before Income Taxes									0.0		0.0
Purchases of property, plant and equipment									0.0	0.7	1.9
Depreciation and amortization									0.9	1.1	1.0
Identifiable assets	7.6				8.8				7.6	8.8	9.4
Medical | Operating Segments
Segment Reporting Information [Line Items]
Net sales									2.8	1.6	1.1
Medical | Transfers between Segments
Segment Reporting Information [Line Items]
Net sales									0.0	0.0	0.0
Eliminations/Corporate
Segment Reporting Information [Line Items]
Net sales									0.0	0.0	0.0
Income/(loss) from operations									(48.3)	(36.3)	(48.0)
Interest expense, net									0.0		0.0
Other income, net									0.0		0.0
Income before Income Taxes									0.0		0.0
Purchases of property, plant and equipment									0.3	0.9	5.9
Depreciation and amortization									1.7	1.6	2.2
Identifiable assets	$ 167.9				$ 198.1				167.9	198.1	52.0
Eliminations/Corporate | Operating Segments
Segment Reporting Information [Line Items]
Net sales									(11.4)	(7.3)	(10.3)
Eliminations/Corporate | Transfers between Segments
Segment Reporting Information [Line Items]
Net sales									$ 11.4	$ 7.3	$ 10.3