Segment Information - Detailed Segment Data (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Segment Reporting Information [Line Items]
Sales	$ 776.4	$ 748.1
Segment operating profit:	133.8	134.8
Corporate & other unallocated costs	(45.9)	(40.4)
Interest expense, net	(24.0)	(12.9)
Gain on previously held equity interests from combination of business	0.0	32.7
Unrealized gain on equity securities measured at fair value	0.0	163.0
Other non-operating expense, net	(0.9)	(0.1)
Earnings before income taxes	108.9	317.5
Depreciation and amortization expense	10.4	10.6
Interest income	19.8	18.4
Capital charge	10.2	9.9
Operating Segments
Segment Reporting Information [Line Items]
Segment operating profit:	179.7	175.2
Corporate And Reconciling Items
Segment Reporting Information [Line Items]
Sales	35.3	47.9
Segment operating profit:	3.8	5.1
Depreciation and amortization expense	0.0	0.4
Other
Segment Reporting Information [Line Items]
Depreciation and amortization expense	0.3	0.2
Mobility Technologies
Segment Reporting Information [Line Items]
Depreciation and amortization expense	6.1	6.0
Mobility Technologies | Operating Segments
Segment Reporting Information [Line Items]
Sales	245.9	207.6
Segment operating profit:	47.9	41.1
Repair Solutions
Segment Reporting Information [Line Items]
Depreciation and amortization expense	0.4	0.4
Repair Solutions | Operating Segments
Segment Reporting Information [Line Items]
Sales	181.4	164.4
Segment operating profit:	47.3	47.0
Environmental & Fueling Solutions
Segment Reporting Information [Line Items]
Depreciation and amortization expense	3.6	3.6
Environmental & Fueling Solutions | Operating Segments
Segment Reporting Information [Line Items]
Sales	313.8	328.2
Segment operating profit:	$ 80.7	$ 82.0