Segment Data (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 29, 2025	Mar. 30, 2024	Dec. 31, 2024
Segment Reporting Information [Line Items]
Net Sales	$ 1,221.8	$ 1,365.0
Operating Income (Loss)	56.3	110.6
Cost of sales, including restructuring	918.6	995.0
Operating Expenses	246.9	259.4
Total Assets	5,857.0	6,508.7	$ 5,677.7
Depreciation	50.9	51.5
Amortization	19.2	17.9
Payments to Acquire Property, Plant, and Equipment	37.7	54.0
Research and Development Expense	38.5	45.8
Net Property	1,239.6	1,309.0	1,251.5
Selling, General and Administrative Expense	208.0	203.7
Restructuring, Exit and Impairment Charges	1.1	13.5
United States [Member]
Segment Reporting Information [Line Items]
Net Sales	818.1	917.0
Net Property	1,116.7	1,180.0	1,127.8
Non-US
Segment Reporting Information [Line Items]
Net Sales	403.7	448.0
Net Property	105.7	109.5	105.2
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Net Property	17.2	19.5	18.5
Cost of Sales [Member]
Segment Reporting Information [Line Items]
Restructuring, Exit and Impairment Charges	0.7	3.6
Selling, General and Administrative Expenses [Member]
Segment Reporting Information [Line Items]
Restructuring, Exit and Impairment Charges	0.4	9.9
Propulsion [Member]
Segment Reporting Information [Line Items]
Net Sales	413.7	495.8
Operating Income (Loss)	46.1	82.8
Cost of sales, including restructuring	307.9	339.9
Operating Expenses	59.7	73.1
Total Assets	1,512.1	1,758.8	1,507.3
Depreciation	29.8	30.8
Amortization	1.9	1.6
Segment, Expenditure, Addition to Long-Lived Assets	15.2	27.3
Research and Development Expense	18.5	23.8
Restructuring, Exit and Impairment Charges		5.6
Boat [Member]
Segment Reporting Information [Line Items]
Net Sales	371.7	425.7
Operating Income (Loss)	7.7	29.4
Cost of sales, including restructuring	308.7	343.1
Operating Expenses	55.3	53.2
Total Assets	898.3	922.0	868.3
Depreciation	13.2	12.6
Amortization	1.5	1.4
Segment, Expenditure, Addition to Long-Lived Assets	15.9	17.1
Research and Development Expense	7.2	6.8
Restructuring, Exit and Impairment Charges		1.0
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Net Sales	0.0	0.0
Operating Income (Loss)	(33.8)	(32.4)
Cost of sales, including restructuring	0.0	0.0
Operating Expenses	33.8	32.4
Total Assets	639.5	857.8	621.0
Depreciation	1.2	1.2
Amortization	1.1	0.8
Segment, Expenditure, Addition to Long-Lived Assets	1.9	2.1
Research and Development Expense	1.0	2.5
Restructuring, Exit and Impairment Charges		0.9
Engine Parts and Accessories [Member]
Segment Reporting Information [Line Items]
Net Sales	252.9	260.7
Operating Income (Loss)	39.1	33.2
Cost of sales, including restructuring	185.3	197.6
Operating Expenses	28.5	29.9
Total Assets	922.2	927.1	803.5
Depreciation	4.0	3.7
Amortization	0.2	0.2
Segment, Expenditure, Addition to Long-Lived Assets	2.2	3.5
Research and Development Expense	0.4	0.2
Restructuring, Exit and Impairment Charges		3.3
Navico Group
Segment Reporting Information [Line Items]
Net Sales	183.5	182.8
Operating Income (Loss)	(2.8)	(2.4)
Cost of sales, including restructuring	116.7	114.4
Operating Expenses	69.6	70.8
Total Assets	1,884.9	2,043.0	$ 1,877.6
Depreciation	2.7	3.2
Amortization	14.5	13.9
Segment, Expenditure, Addition to Long-Lived Assets	2.5	4.0
Research and Development Expense	11.4	12.5
Restructuring, Exit and Impairment Charges		2.7
Navico Group | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	208.2	210.9
Operating Income (Loss)	$ (2.8)	$ (2.4)