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SEGMENT INFORMATION - Geographic Area Data (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales | $ 2,368.4 | $ 2,001.7 | $ 2,236.3 | $ 1,593.6 | $ 1,117.8 | $ 1,077.8 | $ 1,111.7 | $ 1,056.2 | $ 8,200.0 | $ 4,363.5 | $ 3,881.7
Long-Lived Assets | 1,655.8 |  |  |  | 563.8 |  |  |  | 1,655.8 | 563.8 | 574.0
United States |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 3,381.0 | 1,460.3 | 1,323.8
Long-Lived Assets | 1,089.8 |  |  |  | 204.3 |  |  |  | 1,089.8 | 204.3 | 211.6
United Kingdom |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 376.2 | 395.8 | 356.5
Long-Lived Assets | 55.5 |  |  |  | 54.8 |  |  |  | 55.5 | 54.8 | 57.7
Germany |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 340.0 | 314.7 | 208.8
Long-Lived Assets | 77.7 |  |  |  | 75.5 |  |  |  | 77.7 | 75.5 | 71.7
Canada |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 733.3 | 279.0 | 279.0
Long-Lived Assets | 13.2 |  |  |  | 5.3 |  |  |  | 13.2 | 5.3 | 5.8
Australia |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 296.4 | 173.5 | 136.1
Long-Lived Assets | 12.1 |  |  |  | 9.6 |  |  |  | 12.1 | 9.6 | 10.5
Mexico |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 356.6 | 200.6 | 160.0
Long-Lived Assets | 23.7 |  |  |  | 9.2 |  |  |  | 23.7 | 9.2 | 9.1
France |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 294.3 | 247.8 | 237.5
Long-Lived Assets | 58.9 |  |  |  | 56.7 |  |  |  | 58.9 | 56.7 | 57.8
India |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 504.2 | 178.5 | 137.8
Long-Lived Assets | 159.2 |  |  |  | 12.8 |  |  |  | 159.2 | 12.8 | 12.5
China |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 290.4 | 170.3 | 178.1
Long-Lived Assets | 34.5 |  |  |  | 33.4 |  |  |  | 34.5 | 33.4 | 36.4
Other international |  |  |  |  |  |  |  |  |  |  |
Revenues From External Customers And Long Lived Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 1,627.6 | 943.0 | 864.1
Long-Lived Assets | $ 131.2 |  |  |  | $ 102.2 |  |  |  | $ 131.2 | $ 102.2 | $ 100.9

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