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Restructuring, Exit and Integration Activities (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 27, 2025 | Sep. 28, 2024 | Sep. 27, 2025 | Sep. 28, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Total Restructuring, Exit and Impairment Charges | $ 333.8 |  | $ 12.2 | $ 342.9 |  | $ 33.6 |  |
Restructuring Reserve [Abstract] |  |  |  |  |  |  |  |
Total Cash Payments for Restructuring, Exit, Integration and Impairment Charges | 2.8 |  | 7.4 | 12.2 |  | 25.5 |  |
Accrued Charges at End of the Period | 12.2 |  | 10.7 | 12.2 |  | 10.7 |  |
Goodwill | 679.6 |  | 1,059.7 | 679.6 |  | 1,059.7 | $ 966.1 | $ 1,030.7
Includes non-operating |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Total Restructuring, Exit and Impairment Charges | 332.9 |  |  | 342.0 |  |  |  |
Restructuring and Exit Activities [Member] |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Employee Termination and Other Benefits | 8.6 |  | 10.9 | 16.9 |  | 26.9 |  |
Restructuring Reserve [Abstract] |  |  |  |  |  |  |  |
Asset Impairment Charges | 323.7 |  | 1.3 | 324.1 |  | 6.7 |  |
Professional Fees | 0.6 |  |  | 1.0 |  |  |  |
Boat [Member] |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Total Restructuring, Exit and Impairment Charges | 8.4 |  | 2.9 | 9.7 |  | 5.6 |  |
Restructuring Reserve [Abstract] |  |  |  |  |  |  |  |
Total Cash Payments for Restructuring, Exit, Integration and Impairment Charges | 0.4 |  | 2.9 | 2.8 |  | 4.6 |  |
Accrued Charges at End of the Period | 8.0 |  | 2.6 | 8.0 |  | 2.6 |  |
Goodwill | 170.1 |  | 171.1 | 170.1 |  | 171.1 | 169.3 | 143.9
Boat [Member] | Restructuring and Exit Activities [Member] |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Employee Termination and Other Benefits | 6.9 |  | 2.8 | 8.2 |  | 5.5 |  |
Restructuring Reserve [Abstract] |  |  |  |  |  |  |  |
Asset Impairment Charges | 0.9 |  | 0.1 | 0.9 |  | 0.1 |  |
Professional Fees | 0.6 |  |  | 0.6 |  |  |  |
Corporate Segment [Member] |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Total Restructuring, Exit and Impairment Charges | 0.2 |  | 1.1 | 0.5 |  | 2.3 |  |
Restructuring Reserve [Abstract] |  |  |  |  |  |  |  |
Total Cash Payments for Restructuring, Exit, Integration and Impairment Charges | 0.2 |  | 0.3 | 1.1 |  | 1.7 |  |
Accrued Charges at End of the Period | 0.3 |  | 1.2 | 0.3 |  | 1.2 |  |
Corporate Segment [Member] | Restructuring and Exit Activities [Member] |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Employee Termination and Other Benefits | 0.2 |  | 1.1 | 0.5 |  | 2.3 |  |
Restructuring Reserve [Abstract] |  |  |  |  |  |  |  |
Asset Impairment Charges | 0.0 |  | 0.0 | 0.0 |  | 0.0 |  |
Professional Fees | 0.0 |  |  | 0.0 |  |  |  |
Engine Parts and Accessories [Member] |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Total Restructuring, Exit and Impairment Charges | 0.0 |  | 0.8 | 0.4 |  | 4.3 |  |
Restructuring Reserve [Abstract] |  |  |  |  |  |  |  |
Total Cash Payments for Restructuring, Exit, Integration and Impairment Charges | 0.1 |  | 0.9 | 1.0 |  | 3.6 |  |
Accrued Charges at End of the Period | 0.1 |  | 1.4 | 0.1 |  | 1.4 |  |
Goodwill | 233.2 |  | 233.0 | 233.2 |  | 233.0 | 232.6 | 233.0
Engine Parts and Accessories [Member] | Restructuring and Exit Activities [Member] |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Employee Termination and Other Benefits | 0.0 |  | 0.8 | 0.4 |  | 4.3 |  |
Restructuring Reserve [Abstract] |  |  |  |  |  |  |  |
Asset Impairment Charges | 0.0 |  | 0.0 | 0.0 |  | 0.0 |  |
Professional Fees | 0.0 |  |  | 0.0 |  |  |  |
Navico Group |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Total Restructuring, Exit and Impairment Charges | 324.3 |  | 4.5 | 330.2 |  | 12.5 |  |
Restructuring Reserve [Abstract] |  |  |  |  |  |  |  |
Total Cash Payments for Restructuring, Exit, Integration and Impairment Charges | 1.8 |  | 0.8 | 5.2 |  | 8.2 |  |
Accrued Charges at End of the Period | 3.3 |  | 2.8 | 3.3 |  | 2.8 |  |
Goodwill, Impairment Loss |  |  |  | 305.8 |  |  |  |
Goodwill | 222.7 |  | 601.6 | 222.7 |  | 601.6 | 513.4 | 599.7
Impairment of Intangible Assets (Excluding Goodwill) |  |  |  | 17.0 |  |  |  |
Goodwill and Intangible Asset Impairment |  |  |  | 322.8 |  |  |  |
Navico Group | Restructuring and Exit Activities [Member] |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Employee Termination and Other Benefits | 1.5 |  | 3.3 | 6.6 |  | 5.9 |  |
Restructuring Reserve [Abstract] |  |  |  |  |  |  |  |
Asset Impairment Charges | 322.8 | [1] | 1.2 | 323.2 | [2] | 6.6 |  |
Professional Fees | 0.0 |  |  | 0.4 |  |  |  |
Propulsion [Member] |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Total Restructuring, Exit and Impairment Charges | 0.0 |  | 2.9 | 1.2 |  | 8.9 |  |
Restructuring Reserve [Abstract] |  |  |  |  |  |  |  |
Total Cash Payments for Restructuring, Exit, Integration and Impairment Charges | 0.3 |  | 2.5 | 2.1 |  | 7.4 |  |
Accrued Charges at End of the Period | 0.5 |  | 2.7 | 0.5 |  | 2.7 |  |
Goodwill | 53.6 |  | 54.0 | 53.6 |  | 54.0 | $ 50.8 | $ 54.1
Propulsion [Member] | Restructuring and Exit Activities [Member] |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |
Employee Termination and Other Benefits | 0.0 |  | 2.9 | 1.2 |  | 8.9 |  |
Restructuring Reserve [Abstract] |  |  |  |  |  |  |  |
Asset Impairment Charges | 0.0 |  | $ 0.0 | 0.0 |  | $ 0.0 |  |
Professional Fees | $ 0.0 |  |  | $ 0.0 |  |  |  |
[1] | (B) Includes impairment charges of $322.8 million associated with an impairment of the Navico Group reporting unit's goodwill and trade names during the three months ended September 27, 2025.
[2] | (B) Includes impairment charges of $322.8 million associated with an impairment of the Navico Group reporting unit's goodwill and trade names during the nine months ended September 27, 2025.

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