Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 29, 2022	Oct. 30, 2021	Oct. 29, 2022	Oct. 30, 2021	Apr. 30, 2022
Segment Reporting Information [Line Items]
Net sales	$ 315.9	$ 295.5	$ 598.3	$ 583.3
Income (loss) from operations	32.8	33.2	54.6	67.3
Interest expense, net	0.5	1.1	0.5	2.2
Other income, net	(1.1)	(0.9)	(5.2)	(2.7)
Income before income taxes	33.4	33.0	59.3	67.8
Identifiable assets	1,394.3		1,394.3		$ 1,389.1
Automotive
Segment Reporting Information [Line Items]
Net sales	196.9	196.0	373.5	391.8
Income (loss) from operations	23.4	23.6	38.1	50.9
Identifiable assets	700.6		700.6		689.8
Industrial
Segment Reporting Information [Line Items]
Net sales	103.8	80.7	195.9	159.2
Income (loss) from operations	25.0	18.8	47.4	39.0
Identifiable assets	463.7		463.7		455.3
Interface
Segment Reporting Information [Line Items]
Net sales	14.1	18.0	27.1	30.7
Income (loss) from operations	1.6	4.4	3.2	5.5
Identifiable assets	113.2		113.2		108.1
Medical
Segment Reporting Information [Line Items]
Net sales	1.1	0.8	1.8	1.6
Income (loss) from operations	(1.4)	(1.8)	(2.9)	(3.0)
Identifiable assets	6.5		6.5		7.9
Eliminations/Corporate
Segment Reporting Information [Line Items]
Net sales	0.0	0.0
Income (loss) from operations	(15.8)	(11.8)	(31.2)	(25.1)
Identifiable assets	110.3		110.3		$ 128.0
Operating Segments
Segment Reporting Information [Line Items]
Net sales	315.9	295.5	598.3	583.3
Operating Segments | Automotive
Segment Reporting Information [Line Items]
Net sales	198.3	197.1	375.6	394.1
Operating Segments | Industrial
Segment Reporting Information [Line Items]
Net sales	107.8	82.7	201.5	163.9
Operating Segments | Interface
Segment Reporting Information [Line Items]
Net sales	14.1	18.0	27.1	30.7
Operating Segments | Medical
Segment Reporting Information [Line Items]
Net sales	1.1	0.8	1.8	1.6
Operating Segments | Eliminations/Corporate
Segment Reporting Information [Line Items]
Net sales	(5.4)	(3.1)	(7.7)	(7.0)
Transfers between Segments
Segment Reporting Information [Line Items]
Net sales	0.0	0.0
Transfers between Segments | Automotive
Segment Reporting Information [Line Items]
Net sales	(1.4)	(1.1)	(2.1)	(2.3)
Transfers between Segments | Industrial
Segment Reporting Information [Line Items]
Net sales	(4.0)	(2.0)	(5.6)	(4.7)
Transfers between Segments | Interface
Segment Reporting Information [Line Items]
Net sales	0.0	0.0
Transfers between Segments | Medical
Segment Reporting Information [Line Items]
Net sales	0.0	0.0
Transfers between Segments | Eliminations/Corporate
Segment Reporting Information [Line Items]
Net sales	$ 5.4	$ 3.1	$ 7.7	$ 7.0