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NATURE OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES NATURE OF OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES (Details 5) - USD ($) $ in Millions | Jan. 01, 2018 | Dec. 31, 2016
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New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Long-term deferred tax assets |  | $ 21.6
Scenario, Previously Reported |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Long-term deferred tax assets |  | 16.0
Accounting Standards Update 2015-07 |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Deferred tax assets, net, current |  | $ (5.6)
Subsequent Event | Retained Earnings (Accumulated deficit) | Accounting Standards Update 2014-09 |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Cumulative effect of new accounting principle | $ 0.8 |

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