Segment Data (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2018 |
Jul. 01, 2017 |
Jun. 30, 2018 |
Jul. 01, 2017 |
Dec. 31, 2017 |
|
| Segment Reporting Information [Line Items] | |||||
| Net Sales | $ 1,400.9 | $ 1,352.0 | $ 2,612.3 | $ 2,512.3 | |
| Operating Earnings (Loss) | 106.7 | 171.1 | 211.8 | 262.5 | |
| Total Assets | 3,421.0 | 3,383.7 | 3,421.0 | 3,383.7 | $ 3,358.2 |
| Assets Held-For-Sale, Not Part of Disposal Group | 12.9 | 6.3 | 12.9 | 6.3 | 12.7 |
| Marine Eliminations [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Net Sales | (80.5) | (76.8) | (177.1) | (166.6) | |
| Operating Earnings (Loss) | 0.0 | 0.0 | 0.0 | 0.0 | |
| Marine Engine [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Net Sales | 834.3 | 766.2 | 1,521.4 | 1,398.0 | |
| Operating Earnings (Loss) | 149.1 | 148.3 | 244.8 | 236.9 | |
| Total Assets | 1,345.7 | 1,220.2 | 1,345.7 | 1,220.2 | 1,205.0 |
| Boat [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Net Sales | 394.9 | 412.1 | 771.4 | 794.8 | |
| Operating Earnings (Loss) | (32.2) | 24.7 | (17.8) | 27.9 | |
| Total Assets | 408.1 | 433.8 | 408.1 | 433.8 | 411.6 |
| Total Marine [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Net Sales | 1,148.7 | 1,101.5 | 2,115.7 | 2,026.2 | |
| Operating Earnings (Loss) | 116.9 | 173.0 | 227.0 | 264.8 | |
| Total Assets | 1,753.8 | 1,654.0 | 1,753.8 | 1,654.0 | 1,616.6 |
| Fitness [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Net Sales | 252.2 | 250.5 | 496.6 | 486.1 | |
| Operating Earnings (Loss) | 14.3 | 18.5 | 25.3 | 36.8 | |
| Total Assets | 979.1 | 951.3 | 979.1 | 951.3 | 1,012.8 |
| Corporate/Other [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Net Sales | 0.0 | 0.0 | 0.0 | 0.0 | |
| Operating Earnings (Loss) | (24.5) | (20.4) | (40.5) | (39.1) | |
| Total Assets | $ 688.1 | $ 778.4 | $ 688.1 | $ 778.4 | $ 728.8 |