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Recently Issued Accounting Standards (Details) - USD ($) $ in Millions | Jun. 30, 2018 | Apr. 01, 2018 | Mar. 31, 2018
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New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Prepaid expenses, impact of adoption of ASU 2014-09 |  | $ (12.1) |
Deferred income, impact of adoption of ASU 2014-09 |  | (6.1) |
Inventory return asset | $ 21.9 |  | $ 0.0
Accounting Standards Update 2017-12 [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  | 0.7 |
Accounting Standards Update 2016-16 [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  | (0.6) |
Accounting Standards Update 2014-09 [Member] |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  | $ (5.2) |

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- Definition Increase (decrease) to opening balance of deferred revenue resulting from adoption of ASU 2014-09 + References No definition available. + Details
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- Definition Inventory return asset - inventory amounts associated with estimated sales returns + References No definition available. + Details
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