Segment Information - Detailed Segment Data (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jul. 01, 2022	Jun. 30, 2023	Jul. 01, 2022
Segment Reporting Information [Line Items]
Sales	$ 764.4	$ 776.4	$ 1,540.8	$ 1,524.5
Segment operating profit:	120.6	136.5	254.4	271.3
Corporate & other unallocated costs	(63.1)	(49.4)	(109.0)	(89.8)
Interest expense, net	(23.9)	(15.3)	(47.9)	(28.2)
Gain on sale of business	34.1	0.0	34.1	0.0
Gain on previously held equity interests from combination of business	0.0	0.0	0.0	32.7
Unrealized (loss) gain on equity securities measured at fair value	0.0	(80.0)	0.0	83.0
Other non-operating expense, net	(0.5)	0.0	(1.4)	(0.1)
Earnings before income taxes	130.3	41.2	239.2	358.7
Depreciation and amortization expense	11.3	9.4	21.7	20.0
Interest income	19.0	18.2	38.8	36.6
Capital charge	10.3	9.9	20.5	19.8
Operating Segments
Segment Reporting Information [Line Items]
Segment operating profit:	183.7	185.9	363.4	361.1
Corporate And Reconciling Items
Segment Reporting Information [Line Items]
Sales	27.9	40.8	63.2	88.7
Segment operating profit:	2.2	3.2	6.0	8.3
Depreciation and amortization expense	0.0	0.5	0.0	0.9
Other
Segment Reporting Information [Line Items]
Depreciation and amortization expense	0.2	0.2	0.5	0.4
Mobility Technologies
Segment Reporting Information [Line Items]
Depreciation and amortization expense	6.8	4.7	12.9	10.7
Mobility Technologies | Operating Segments
Segment Reporting Information [Line Items]
Sales	238.8	210.6	484.7	418.2
Segment operating profit:	44.7	42.6	92.6	83.7
Repair Solutions
Segment Reporting Information [Line Items]
Depreciation and amortization expense	0.5	0.4	0.9	0.8
Repair Solutions | Operating Segments
Segment Reporting Information [Line Items]
Sales	158.4	149.7	339.8	314.1
Segment operating profit:	41.6	41.6	88.9	88.6
Environmental & Fueling Solutions
Segment Reporting Information [Line Items]
Depreciation and amortization expense	3.8	3.6	7.4	7.2
Environmental & Fueling Solutions | Operating Segments
Segment Reporting Information [Line Items]
Sales	339.3	375.3	653.1	703.5
Segment operating profit:	$ 95.2	$ 98.5	$ 175.9	$ 180.5