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Accumulated Other Comprehensive Loss - Detail of Amounts Reclassified from Accumulated Other Comprehensive Income (Detail) - 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
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |
Other (expense) income, net |  |  |  |  |  |  |  |  | $ (19.5) | $ (18.1) | $ 6.2
Cost of sales |  |  |  |  |  |  |  |  | (3,226.3) | (3,230.6) | (3,049.5)
Interest expense, net |  |  |  |  |  |  |  |  | (184.1) | (177.9) | (184.2)
Earnings before income tax provision |  |  |  |  |  |  |  |  | (370.3) | (457.8) | (393.3)
Income tax provision |  |  |  |  |  |  |  |  | 76.6 | 307.5 | 330.5
Net earnings from continuing operations | $ (124.4) | $ (79.5) | $ (25.5) | $ (64.3) | $ (199.4) | $ (75.6) | $ (83.3) | $ 208.0 | (293.7) | (150.3) | (62.8)
Total reclassifications for the period |  |  |  |  |  |  |  |  | (2.5) | (1.9) | (7.8)
Defined benefit pension plans and other post-employment benefits |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total reclassifications for the period |  |  |  |  |  |  |  |  | (3.6) | (2.1) |
Net gains losses) on cash flow hedging derivatives |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earnings before income tax provision |  |  |  |  |  |  |  |  | 1.7 | 0.3 | (2.4)
Income tax provision |  |  |  |  |  |  |  |  | (0.6) | (0.1) | 0.8
Net earnings from continuing operations |  |  |  |  |  |  |  |  | 1.1 | 0.2 | (1.6)
Net gains losses) on cash flow hedging derivatives | Foreign currency forward contracts |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |
Cost of sales |  |  |  |  |  |  |  |  | 1.6 | 0.2 | 0.9
Net gains losses) on cash flow hedging derivatives | Interest rate and currency swaps |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest expense, net |  |  |  |  |  |  |  |  | 0.0 | 0.0 | (3.4)
Net gains losses) on cash flow hedging derivatives | Treasury locks |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest expense, net |  |  |  |  |  |  |  |  | 0.1 | 0.1 | 0.1
Reclassification out of Accumulated Other Comprehensive Income | Prior service credits |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |
Other (expense) income, net |  |  |  |  |  |  |  |  | 0.1 | 0.3 | 1.3
Reclassification out of Accumulated Other Comprehensive Income | Actuarial losses |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |
Other (expense) income, net |  |  |  |  |  |  |  |  | (4.9) | (3.1) | (10.0)
Reclassification out of Accumulated Other Comprehensive Income | Defined benefit pension plans and other post-employment benefits |  |  |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |  |  |  |  |  |  |
Earnings before income tax provision |  |  |  |  |  |  |  |  | (4.8) | (2.8) | (8.7)
Income tax provision |  |  |  |  |  |  |  |  | 1.2 | 0.7 | 2.5
Net earnings from continuing operations |  |  |  |  |  |  |  |  | $ (3.6) | $ (2.1) | $ (6.2)

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