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
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