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NEW ACCOUNTING PRONOUNCEMENTS - Cumulative Effect on Balance Sheet (Details) - USD ($) $ in Millions | Mar. 30, 2019 | Jan. 01, 2019 | Dec. 31, 2018 | Jan. 01, 2018
--- | --- | --- | --- | ---
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Other assets | $ 685.4 | $ 685.4 | $ 657.7 |
Accrued expenses | 176.5 | 191.6 | 183.7 |
Other long-term liabilities | 828.2 | 837.1 | 817.3 |
Retained deficit | $ (650.9) |  | $ (650.1) |
Accounting Standards Update 2016-02 |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Other assets |  | 27.7 |  |
Accrued expenses |  | 7.9 |  |
Other long-term liabilities |  | $ 19.8 |  |
Accounting Standards Update 2014-09 |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Retained deficit |  |  |  | $ 4.0
Accounting Standards Update 2016-16 |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Retained deficit |  |  |  | (0.2)
Accounting Standards Update 2018-02 |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Retained deficit |  |  |  | $ (4.8)

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