v3.25.2
Goodwill and Intangibles Goodwill (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 28, 2025
Mar. 29, 2025
Jun. 29, 2024
Jun. 28, 2025
Jun. 29, 2024
Dec. 31, 2024
Mar. 30, 2024
Dec. 31, 2023
Goodwill [Roll Forward]                
Goodwill, Impaired, Accumulated Impairment Loss   $ 0.0       $ 0.0 $ 0.0  
Goodwill, Other Increase (Decrease)       $ 20.0 $ (6.6)      
Goodwill $ 986.1   $ 1,024.1 986.1 1,024.1 966.1   $ 1,030.7
Amortization Expense for Intangibles 20.1   17.9 39.3 35.8      
Goodwill, Purchase Accounting Adjustments         2.2      
Propulsion [Member]                
Goodwill [Roll Forward]                
Goodwill, Other Increase (Decrease)       3.0 (2.1)      
Goodwill 53.8   52.0 53.8 52.0 50.8   54.1
Boat [Member]                
Goodwill [Roll Forward]                
Goodwill, Other Increase (Decrease)       0.5 (1.3)      
Goodwill 169.8   142.6 169.8 142.6 169.3   143.9
Navico Group                
Goodwill [Roll Forward]                
Goodwill, Impaired, Accumulated Impairment Loss 80.0     80.0        
Goodwill, Other Increase (Decrease)       15.8 (3.0)      
Goodwill 529.2   596.7 529.2 596.7 513.4   599.7
Engine Parts and Accessories [Member]                
Goodwill [Roll Forward]                
Goodwill, Other Increase (Decrease)       0.7 (0.2)      
Goodwill $ 233.3   $ 232.8 $ 233.3 $ 232.8 $ 232.6   $ 233.0
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