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Recently Adopted and Issued Accounting Standards - Effect of Adoption of New Revenue Recognition Standard (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017 | Jan. 01, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |
Net sales | $ 1,131.0 | $ 1,032.2 |  |
Other current liabilities | 468.8 |  | $ 562.0 |
Other non-current liabilities | 707.8 |  | 490.8 |
Retained earnings | 1,502.9 |  | 1,735.2 |
Calculated under Revenue Guidance in Effect before Topic 606 |  |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |
Net sales |  |  | 1,130.9 |
Other current liabilities | 467.4 |  |  |
Other non-current liabilities |  |  | $ 706.0 |
ASU 2014-09 |  |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |
Other current liabilities |  |  |  | $ 2.4
Retained earnings |  |  |  | $ (2.4)
ASU 2014-09 | Difference Between Revenue Guidance In Effect Before And After Topic 606 |  |  |  |
Revenue, Initial Application Period Cumulative Effect Transition [Line Items] |  |  |  |
Net sales | 0.1 |  |  |
Other current liabilities | 1.4 |  |  |
Other non-current liabilities | $ 1.8 |  |  |

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- Definition Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6904-107765 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6911-107765 + Details
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