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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2018
Inventories [Abstract] |
Schedule of Current Inventory | Inventories are comprised of the following:
| December 31
| 2017 |  | 2018
| (restated) |  |
Raw materials | $ | 733.2 |  |  | $ | 948.8 |
Work in progress | 57.6 |  |  | 101.5 |
Finished goods | 33.2 |  |  | 39.6 |
| $ | 824.0 |  |  | $ | 1,089.9 |

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