PROVISION FOR INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Federal statutory tax rate	21.00%	35.00%	21.00%	35.00%
Provisional One Time Transition Tax Related to Tax Cuts and Jobs Act					$ 35.3
Provisional Net Adjustment to Deferred Tax Assets and Liabilities Related to Tax Cuts and Jobs Act					$ 4.9
Effective income tax rate	6.80%	5.20%	5.50%	0.30%