Segment Data (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Net Sales	$ 1,365.0	$ 1,743.6
Operating Income (Loss)	110.6	236.1
Total Assets	6,508.7	6,288.6	$ 6,230.5
Segment Eliminations [Member]
Segment Reporting Information [Line Items]
Net Sales	(112.2)	(149.1)
Operating Income (Loss)	0.0	0.0
Propulsion [Member]
Segment Reporting Information [Line Items]
Total Assets	1,758.8	1,634.0	1,648.7
Propulsion [Member] | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	578.2	751.6
Operating Income (Loss)	82.8	151.1
Boat [Member]
Segment Reporting Information [Line Items]
Total Assets	922.0	882.5	874.8
Boat [Member] | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	425.7	575.2
Operating Income (Loss)	29.4	57.8
Corporate/Other [Member]
Segment Reporting Information [Line Items]
Total Assets	857.8	678.8	777.1
Corporate/Other [Member] | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	0.0	0.0
Operating Income (Loss)	(32.4)	(33.4)
Engine Parts and Accessories [Member]
Segment Reporting Information [Line Items]
Total Assets	927.1	940.6	855.6
Engine Parts and Accessories [Member] | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	262.4	288.6
Operating Income (Loss)	33.2	47.8
Navico Group
Segment Reporting Information [Line Items]
Total Assets	2,043.0	2,152.7	$ 2,074.3
Navico Group | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	210.9	277.3
Operating Income (Loss)	$ (2.4)	$ 12.8