BASIS OF PRESENTATION - Narrative (Details) - Long-Term Investment in Vendor - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Related Party Transaction [Line Items]
Total related party expense	$ 8.1	$ 4.3
Total amount payable to related parties	$ 3.3		$ 2.3