INCOME TAXES (Details) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Gross unrecognized income tax benefits	$ 24.2	$ 24.2
Accrued interest and penalties related to unrecognized income tax benefits	13.6	12.7
Valuation allowance provided for deferred tax assets	$ 14.5	$ 15.1