| Revenue from Contract with Customer [Text Block] | 
Revenue Recognition       
The following table presents the Company's revenue into categories that depict how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors: 
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Year Ended December 31, 2021 | 
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Year Ended December 31, 2020 | 
 
| (in millions) | 
Propulsion | 
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Parts & Accessories | 
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Boat | 
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Total | 
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Propulsion | 
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Parts & Accessories | 
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Boat | 
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Total | 
 
| Geographic Markets | 
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| United States | 
$ | 
1,641.9  | 
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$ | 
1,383.7  | 
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$ | 
1,259.1  | 
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$ | 
4,284.7 
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$ | 
1,207.8  | 
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$ | 
1,091.0  | 
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$ | 
957.5  | 
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$ | 
3,256.3  | 
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| Europe | 
376.8  | 
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275.8  | 
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162.5  | 
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815.1 
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255.2  | 
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180.5  | 
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128.5  | 
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564.2  | 
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| Asia-Pacific | 
236.9  | 
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172.4  | 
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32.8  | 
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442.1 
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240.4  | 
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117.9  | 
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27.7  | 
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386.0  | 
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| Canada | 
102.0  | 
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117.1  | 
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217.1  | 
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436.2 
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66.7  | 
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80.9  | 
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114.2  | 
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261.8  | 
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| Rest-of-World | 
147.1  | 
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59.1  | 
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31.6  | 
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237.8 
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108.3  | 
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38.5  | 
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22.4  | 
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169.2  | 
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| Segment Eliminations | 
(337.5) | 
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(32.2) | 
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—  | 
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(369.7) | 
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(263.1) | 
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(26.9) | 
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—  | 
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(290.0) | 
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| Total | 
$ | 
2,167.2  | 
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$ | 
1,975.9  | 
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$ | 
1,703.1  | 
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$ | 
5,846.2 
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$ | 
1,615.3  | 
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$ | 
1,481.9  | 
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$ | 
1,250.3  | 
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$ | 
4,347.5  | 
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| Major Product Lines | 
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| Outboard Engines | 
$ | 
1,935.1  | 
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$ | 
—  | 
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$ | 
—  | 
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$ | 
1,935.1 
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$ | 
1,471.8  | 
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$ | 
—  | 
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$ | 
—  | 
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$ | 
1,471.8  | 
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| Controls, Rigging, and Propellers | 
352.4  | 
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—  | 
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—  | 
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352.4 
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258.4  | 
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—  | 
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—  | 
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258.4  | 
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| Sterndrive Engines | 
217.2  | 
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—  | 
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—  | 
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217.2 
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148.2  | 
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—  | 
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—  | 
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148.2  | 
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| Distribution Parts and Accessories | 
—  | 
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820.1  | 
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—  | 
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820.1 
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—  | 
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664.2  | 
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—  | 
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664.2  | 
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| Engine Parts and Accessories | 
—  | 
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551.5  | 
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—  | 
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551.5 
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—  | 
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432.5  | 
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—  | 
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432.5  | 
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| Advanced Systems Group | 
—  | 
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513.7  | 
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—  | 
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513.7 
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—  | 
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412.1  | 
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—  | 
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412.1  | 
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| Navico | 
—  | 
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122.8  | 
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—  | 
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122.8 
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—  | 
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—  | 
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—  | 
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—  | 
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| Aluminum Freshwater Boats | 
—  | 
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—  | 
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712.4  | 
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712.4 
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—  | 
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—  | 
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488.5  | 
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488.5  | 
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| Recreational Fiberglass Boats | 
—  | 
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—  | 
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571.6  | 
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571.6 
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—  | 
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—  | 
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427.1  | 
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427.1  | 
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| Saltwater Fishing Boats | 
—  | 
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—  | 
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371.9  | 
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371.9 
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—  | 
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—  | 
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298.7  | 
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298.7  | 
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| Business Acceleration | 
—  | 
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—  | 
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60.1  | 
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60.1 
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—  | 
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—  | 
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40.5  | 
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40.5  | 
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| Boat Eliminations/Other | 
—  | 
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—  | 
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(12.9) | 
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(12.9) | 
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—  | 
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—  | 
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(4.5) | 
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(4.5) | 
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| Segment Eliminations | 
(337.5) | 
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(32.2) | 
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—  | 
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(369.7) | 
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(263.1) | 
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(26.9) | 
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—  | 
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(290.0) | 
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| Total | 
$ | 
2,167.2  | 
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$ | 
1,975.9  | 
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$ | 
1,703.1  | 
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$ | 
5,846.2 
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$ | 
1,615.3  | 
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$ | 
1,481.9  | 
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$ | 
1,250.3  | 
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$ | 
4,347.5  | 
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Year Ended December 31, 2019 | 
 
| (in millions) | 
Propulsion | 
 | 
Parts & Accessories | 
 | 
Boat | 
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Total | 
 
| Geographic Markets | 
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| United States | 
$ | 
1,152.1  | 
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$ | 
978.5  | 
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$ | 
1,009.0  | 
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$ | 
3,139.6  | 
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| Europe | 
235.1  | 
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175.8  | 
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115.6  | 
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526.5  | 
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| Asia-Pacific | 
143.2  | 
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103.4  | 
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31.2  | 
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277.8  | 
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| Canada | 
62.7  | 
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80.1  | 
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154.8  | 
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297.6  | 
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| Rest-of-World | 
99.8  | 
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42.3  | 
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23.7  | 
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165.8  | 
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| Segment Eliminations | 
(269.7) | 
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(29.2) | 
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—  | 
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(298.9) | 
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| Total | 
$ | 
1,423.2  | 
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$ | 
1,350.9  | 
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$ | 
1,334.3  | 
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$ | 
4,108.4  | 
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| Major Product Lines | 
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| Outboard Engines | 
$ | 
1,306.7  | 
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$ | 
—  | 
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$ | 
—  | 
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$ | 
1,306.7  | 
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| Controls, Rigging, and Propellers | 
213.6  | 
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—  | 
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—  | 
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213.6  | 
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| Sterndrive Engines | 
172.6  | 
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—  | 
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—  | 
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172.6  | 
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| Distribution Parts and Accessories | 
—  | 
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571.8  | 
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—  | 
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571.8  | 
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| Engine Parts and Accessories | 
—  | 
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395.3  | 
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—  | 
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395.3  | 
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| Advanced Systems Group | 
—  | 
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413.0  | 
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—  | 
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413.0  | 
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| Aluminum Freshwater Boats | 
—  | 
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—  | 
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556.6  | 
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556.6  | 
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| Recreational Fiberglass Boats | 
—  | 
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—  | 
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438.8  | 
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438.8  | 
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| Saltwater Fishing Boats | 
—  | 
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—  | 
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316.6  | 
 | 
 | 
316.6  | 
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| Business Acceleration | 
—  | 
 | 
 | 
—  | 
 | 
 | 
24.1  | 
 | 
 | 
24.1  | 
 | 
 
| Boat Eliminations/Other | 
—  | 
 | 
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—  | 
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(1.8) | 
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(1.8) | 
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| Segment Eliminations | 
(269.7) | 
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(29.2) | 
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—  | 
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(298.9) | 
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| Total | 
$ | 
1,423.2  | 
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$ | 
1,350.9  | 
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$ | 
1,334.3  | 
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$ | 
4,108.4  | 
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As of January 1, 2021, $113.0 million of contract liabilities associated with extended warranties and customer deposits were reported in Accrued expenses and Other Long-term liabilities, of which $33.3 million of this amount was recognized as revenue during year ended December 31, 2021. As of December 31, 2021, total contract liabilities were $142.1 million. The total amount of the transaction price allocated to unsatisfied performance obligations as of December 31, 2021 is $132.3 million for contracts greater than one year, which includes extended warranties. The Company expects to recognize approximately $40.8 million of this amount in 2022 and $91.5 million thereafter. Contract assets as of January 1, 2021 and December 31, 2021 were not material. In addition, costs to obtain and fulfill contracts during the period were not material. 
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