Goodwill and Intangibles Goodwill (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 29, 2024	Dec. 31, 2023	Jul. 01, 2023	Jun. 29, 2024	Jul. 01, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss	$ 0.0	$ 0.0	$ 0.0	$ 0.0	$ 0.0
Goodwill, Other Increase (Decrease)				(6.6)	7.0
Goodwill	1,024.1	1,030.7	974.6	1,024.1	974.6	$ 967.6
Amortization Expense for Intangibles	17.9		17.2
Goodwill, Purchase Accounting Adjustments		4.8
Propulsion [Member]
Goodwill [Roll Forward]
Goodwill, Other Increase (Decrease)				(2.1)	(0.1)
Goodwill	52.0	54.1	13.9	52.0	13.9	14.0
Boat [Member]
Goodwill [Roll Forward]
Goodwill, Other Increase (Decrease)				(1.3)	4.9
Goodwill	142.6	143.9	129.9	142.6	129.9	125.0
Navico Group
Goodwill [Roll Forward]
Goodwill, Other Increase (Decrease)				(3.0)	2.1
Goodwill	596.7	599.7	597.9	596.7	597.9	595.8
Engine Parts and Accessories [Member]
Goodwill [Roll Forward]
Goodwill, Other Increase (Decrease)				(0.2)	0.1
Goodwill	$ 232.8	$ 233.0	$ 232.9	$ 232.8	$ 232.9	$ 232.8
Customer Relationships [Member]
Goodwill [Roll Forward]
Finite-Lived Intangible Asset, Weighted Average Remaining Useful Life				13 years 3 months 18 days
Other Intangible Assets [Member]
Goodwill [Roll Forward]
Finite-Lived Intangible Asset, Weighted Average Remaining Useful Life				11 years 8 months 12 days