SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2020	Jan. 01, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative-effect adjustment upon adoption of ASC 326, net of taxes (Note 2)	$ 31.3		$ 31.3		$ 31.1
Accounting Standards Update [Extensible List]		us-gaap:AccountingStandardsUpdate201613Member	us-gaap:AccountingStandardsUpdate201613Member
Finance lease payments deferred	6.2
Increase in current finance lease liability	1.5
Promissory notes
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt instrument payments deferred	$ 2.2
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative-effect adjustment upon adoption of ASC 326, net of taxes (Note 2)				$ (3.3)